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Finding the Fourth Proportional to 93,689.71, 140,535.25 and 27,129.74

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Solution

The fourth proportional to 93,689.71, 140,535.25 and 27,129.74 is: 40,694.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,689.71 : 140,535.25 = 27,129.74 : x
  2. Step 2: Convert to fraction form
    93,689.71/140,535.25 = 27,129.74/x
  3. Step 3: Cross multiply
    93,689.71x = 140,535.25 × 27,129.74
  4. Step 4: Simplify right side
    93,689.71x = 3,812,684,175.44
  5. Step 5: Solve for x
    x = 3,812,684,175.44/93,689.71
  6. Step 6: Final answer
    x = 40,694.80

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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.