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Finding the Fourth Proportional to 83,838.92, 125,799.82 and 61,750.22

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Solution

The fourth proportional to 83,838.92, 125,799.82 and 61,750.22 is: 92,655.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,838.92 : 125,799.82 = 61,750.22 : x
  2. Step 2: Convert to fraction form
    83,838.92/125,799.82 = 61,750.22/x
  3. Step 3: Cross multiply
    83,838.92x = 125,799.82 × 61,750.22
  4. Step 4: Simplify right side
    83,838.92x = 7,768,166,560.96
  5. Step 5: Solve for x
    x = 7,768,166,560.96/83,838.92
  6. Step 6: Final answer
    x = 92,655.85

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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.