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Finding the Fourth Proportional to 372,267.92, 558,391.80 and 91,787.60

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Solution

The fourth proportional to 372,267.92, 558,391.80 and 91,787.60 is: 137,678.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,267.92 : 558,391.80 = 91,787.60 : x
  2. Step 2: Convert to fraction form
    372,267.92/558,391.80 = 91,787.60/x
  3. Step 3: Cross multiply
    372,267.92x = 558,391.80 × 91,787.60
  4. Step 4: Simplify right side
    372,267.92x = 51,253,443,181.68
  5. Step 5: Solve for x
    x = 51,253,443,181.68/372,267.92
  6. Step 6: Final answer
    x = 137,678.91

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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.