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Finding the Fourth Proportional to 78,797.52, 108,759.24 and 45,282.96

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Solution

The fourth proportional to 78,797.52, 108,759.24 and 45,282.96 is: 62,501.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,797.52 : 108,759.24 = 45,282.96 : x
  2. Step 2: Convert to fraction form
    78,797.52/108,759.24 = 45,282.96/x
  3. Step 3: Cross multiply
    78,797.52x = 108,759.24 × 45,282.96
  4. Step 4: Simplify right side
    78,797.52x = 4,924,940,314.55
  5. Step 5: Solve for x
    x = 4,924,940,314.55/78,797.52
  6. Step 6: Final answer
    x = 62,501.21

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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.