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Finding the Fourth Proportional to 71,662.32, 107,649 and 60,591.24

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Solution

The fourth proportional to 71,662.32, 107,649 and 60,591.24 is: 91,018.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,662.32 : 107,649 = 60,591.24 : x
  2. Step 2: Convert to fraction form
    71,662.32/107,649 = 60,591.24/x
  3. Step 3: Cross multiply
    71,662.32x = 107,649 × 60,591.24
  4. Step 4: Simplify right side
    71,662.32x = 6,522,586,394.76
  5. Step 5: Solve for x
    x = 6,522,586,394.76/71,662.32
  6. Step 6: Final answer
    x = 91,018.35

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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.