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Finding the Fourth Proportional to 93,104.66, 128,614.02 and 89,648.13

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Solution

The fourth proportional to 93,104.66, 128,614.02 and 89,648.13 is: 123,839.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,104.66 : 128,614.02 = 89,648.13 : x
  2. Step 2: Convert to fraction form
    93,104.66/128,614.02 = 89,648.13/x
  3. Step 3: Cross multiply
    93,104.66x = 128,614.02 × 89,648.13
  4. Step 4: Simplify right side
    93,104.66x = 11,530,006,384.78
  5. Step 5: Solve for x
    x = 11,530,006,384.78/93,104.66
  6. Step 6: Final answer
    x = 123,839.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.