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Finding the Fourth Proportional to 71,701.71, 98,941.25 and 54,716.92

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Solution

The fourth proportional to 71,701.71, 98,941.25 and 54,716.92 is: 75,503.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,701.71 : 98,941.25 = 54,716.92 : x
  2. Step 2: Convert to fraction form
    71,701.71/98,941.25 = 54,716.92/x
  3. Step 3: Cross multiply
    71,701.71x = 98,941.25 × 54,716.92
  4. Step 4: Simplify right side
    71,701.71x = 5,413,760,042.61
  5. Step 5: Solve for x
    x = 5,413,760,042.61/71,701.71
  6. Step 6: Final answer
    x = 75,503.92

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1.5x scale

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.