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Finding the Fourth Proportional to 73,507.62, 110,159.28 and 38,377.20

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Solution

The fourth proportional to 73,507.62, 110,159.28 and 38,377.20 is: 57,512.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,507.62 : 110,159.28 = 38,377.20 : x
  2. Step 2: Convert to fraction form
    73,507.62/110,159.28 = 38,377.20/x
  3. Step 3: Cross multiply
    73,507.62x = 110,159.28 × 38,377.20
  4. Step 4: Simplify right side
    73,507.62x = 4,227,604,720.42
  5. Step 5: Solve for x
    x = 4,227,604,720.42/73,507.62
  6. Step 6: Final answer
    x = 57,512.47

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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.