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Finding the Fourth Proportional to 93,616.40, 140,424.60 and 93,033.20

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Solution

The fourth proportional to 93,616.40, 140,424.60 and 93,033.20 is: 139,549.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,616.40 : 140,424.60 = 93,033.20 : x
  2. Step 2: Convert to fraction form
    93,616.40/140,424.60 = 93,033.20/x
  3. Step 3: Cross multiply
    93,616.40x = 140,424.60 × 93,033.20
  4. Step 4: Simplify right side
    93,616.40x = 13,064,149,896.72
  5. Step 5: Solve for x
    x = 13,064,149,896.72/93,616.40
  6. Step 6: Final answer
    x = 139,549.80

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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.