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Finding the Fourth Proportional to 87,497.72, 120,735.96 and 49,252.52

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Solution

The fourth proportional to 87,497.72, 120,735.96 and 49,252.52 is: 67,962.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,497.72 : 120,735.96 = 49,252.52 : x
  2. Step 2: Convert to fraction form
    87,497.72/120,735.96 = 49,252.52/x
  3. Step 3: Cross multiply
    87,497.72x = 120,735.96 × 49,252.52
  4. Step 4: Simplify right side
    87,497.72x = 5,946,550,284.62
  5. Step 5: Solve for x
    x = 5,946,550,284.62/87,497.72
  6. Step 6: Final answer
    x = 67,962.35

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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.