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Finding the Fourth Proportional to 93,312,010.30, 139,968,015.45 and 84,354,058.30

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Solution

The fourth proportional to 93,312,010.30, 139,968,015.45 and 84,354,058.30 is: 126,531,087.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,312,010.30 : 139,968,015.45 = 84,354,058.30 : x
  2. Step 2: Convert to fraction form
    93,312,010.30/139,968,015.45 = 84,354,058.30/x
  3. Step 3: Cross multiply
    93,312,010.30x = 139,968,015.45 × 84,354,058.30
  4. Step 4: Simplify right side
    93,312,010.30x = 11,806,870,135,404,600
  5. Step 5: Solve for x
    x = 11,806,870,135,404,600/93,312,010.30
  6. Step 6: Final answer
    x = 126,531,087.45

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Double scale
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Similar ratio
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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.