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Finding the Fourth Proportional to 83,997.32, 125,929.38 and 44,008.64

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Solution

The fourth proportional to 83,997.32, 125,929.38 and 44,008.64 is: 65,978.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,997.32 : 125,929.38 = 44,008.64 : x
  2. Step 2: Convert to fraction form
    83,997.32/125,929.38 = 44,008.64/x
  3. Step 3: Cross multiply
    83,997.32x = 125,929.38 × 44,008.64
  4. Step 4: Simplify right side
    83,997.32x = 5,541,980,120.20
  5. Step 5: Solve for x
    x = 5,541,980,120.20/83,997.32
  6. Step 6: Final answer
    x = 65,978.06

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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.