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Finding the Fourth Proportional to 266,562.54, 399,864.42 and 89,070.17

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Solution

The fourth proportional to 266,562.54, 399,864.42 and 89,070.17 is: 133,612.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,562.54 : 399,864.42 = 89,070.17 : x
  2. Step 2: Convert to fraction form
    266,562.54/399,864.42 = 89,070.17/x
  3. Step 3: Cross multiply
    266,562.54x = 399,864.42 × 89,070.17
  4. Step 4: Simplify right side
    266,562.54x = 35,615,989,867.03
  5. Step 5: Solve for x
    x = 35,615,989,867.03/266,562.54
  6. Step 6: Final answer
    x = 133,612.13

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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.