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Finding the Fourth Proportional to 83,265.76, 124,890.54 and 45,813.52

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Solution

The fourth proportional to 83,265.76, 124,890.54 and 45,813.52 is: 68,715.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,265.76 : 124,890.54 = 45,813.52 : x
  2. Step 2: Convert to fraction form
    83,265.76/124,890.54 = 45,813.52/x
  3. Step 3: Cross multiply
    83,265.76x = 124,890.54 × 45,813.52
  4. Step 4: Simplify right side
    83,265.76x = 5,721,675,252.10
  5. Step 5: Solve for x
    x = 5,721,675,252.10/83,265.76
  6. Step 6: Final answer
    x = 68,715.82

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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.