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Finding the Fourth Proportional to 59,107.80, 88,613.10 and 31,405.80

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Solution

The fourth proportional to 59,107.80, 88,613.10 and 31,405.80 is: 47,082.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,107.80 : 88,613.10 = 31,405.80 : x
  2. Step 2: Convert to fraction form
    59,107.80/88,613.10 = 31,405.80/x
  3. Step 3: Cross multiply
    59,107.80x = 88,613.10 × 31,405.80
  4. Step 4: Simplify right side
    59,107.80x = 2,782,965,295.98
  5. Step 5: Solve for x
    x = 2,782,965,295.98/59,107.80
  6. Step 6: Final answer
    x = 47,082.88

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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.