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Finding the Fourth Proportional to 96,412.62, 133,064.85 and 73,707.90

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Solution

The fourth proportional to 96,412.62, 133,064.85 and 73,707.90 is: 101,728.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,412.62 : 133,064.85 = 73,707.90 : x
  2. Step 2: Convert to fraction form
    96,412.62/133,064.85 = 73,707.90/x
  3. Step 3: Cross multiply
    96,412.62x = 133,064.85 × 73,707.90
  4. Step 4: Simplify right side
    96,412.62x = 9,807,930,657.32
  5. Step 5: Solve for x
    x = 9,807,930,657.32/96,412.62
  6. Step 6: Final answer
    x = 101,728.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.