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Finding the Fourth Proportional to 71,357.80, 106,963.80 and 41,760.40

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Solution

The fourth proportional to 71,357.80, 106,963.80 and 41,760.40 is: 62,597.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,357.80 : 106,963.80 = 41,760.40 : x
  2. Step 2: Convert to fraction form
    71,357.80/106,963.80 = 41,760.40/x
  3. Step 3: Cross multiply
    71,357.80x = 106,963.80 × 41,760.40
  4. Step 4: Simplify right side
    71,357.80x = 4,466,851,073.52
  5. Step 5: Solve for x
    x = 4,466,851,073.52/71,357.80
  6. Step 6: Final answer
    x = 62,597.94

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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.