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Finding the Fourth Proportional to 73,987.92, 111,222.46 and 59,356.90

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Solution

The fourth proportional to 73,987.92, 111,222.46 and 59,356.90 is: 89,228.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,987.92 : 111,222.46 = 59,356.90 : x
  2. Step 2: Convert to fraction form
    73,987.92/111,222.46 = 59,356.90/x
  3. Step 3: Cross multiply
    73,987.92x = 111,222.46 × 59,356.90
  4. Step 4: Simplify right side
    73,987.92x = 6,601,820,435.97
  5. Step 5: Solve for x
    x = 6,601,820,435.97/73,987.92
  6. Step 6: Final answer
    x = 89,228.36

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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.