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Finding the Fourth Proportional to 387,650.88, 581,487.24 and 107,168.10

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Solution

The fourth proportional to 387,650.88, 581,487.24 and 107,168.10 is: 160,755.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,650.88 : 581,487.24 = 107,168.10 : x
  2. Step 2: Convert to fraction form
    387,650.88/581,487.24 = 107,168.10/x
  3. Step 3: Cross multiply
    387,650.88x = 581,487.24 × 107,168.10
  4. Step 4: Simplify right side
    387,650.88x = 62,316,882,685.04
  5. Step 5: Solve for x
    x = 62,316,882,685.04/387,650.88
  6. Step 6: Final answer
    x = 160,755.17

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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.