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Finding the Fourth Proportional to 438,767.44, 658,151.17 and 106,343.44

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Solution

The fourth proportional to 438,767.44, 658,151.17 and 106,343.44 is: 159,515.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,767.44 : 658,151.17 = 106,343.44 : x
  2. Step 2: Convert to fraction form
    438,767.44/658,151.17 = 106,343.44/x
  3. Step 3: Cross multiply
    438,767.44x = 658,151.17 × 106,343.44
  4. Step 4: Simplify right side
    438,767.44x = 69,990,057,546.59
  5. Step 5: Solve for x
    x = 69,990,057,546.59/438,767.44
  6. Step 6: Final answer
    x = 159,515.16

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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.