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Finding the Fourth Proportional to 93,606.40, 140,409.60 and 93,023.20

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Solution

The fourth proportional to 93,606.40, 140,409.60 and 93,023.20 is: 139,534.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,606.40 : 140,409.60 = 93,023.20 : x
  2. Step 2: Convert to fraction form
    93,606.40/140,409.60 = 93,023.20/x
  3. Step 3: Cross multiply
    93,606.40x = 140,409.60 × 93,023.20
  4. Step 4: Simplify right side
    93,606.40x = 13,061,350,302.72
  5. Step 5: Solve for x
    x = 13,061,350,302.72/93,606.40
  6. Step 6: Final answer
    x = 139,534.80

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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.