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Finding the Fourth Proportional to 83,308.39, 124,906.92 and 45,885.94

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Solution

The fourth proportional to 83,308.39, 124,906.92 and 45,885.94 is: 68,798.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,308.39 : 124,906.92 = 45,885.94 : x
  2. Step 2: Convert to fraction form
    83,308.39/124,906.92 = 45,885.94/x
  3. Step 3: Cross multiply
    83,308.39x = 124,906.92 × 45,885.94
  4. Step 4: Simplify right side
    83,308.39x = 5,731,471,436.70
  5. Step 5: Solve for x
    x = 5,731,471,436.70/83,308.39
  6. Step 6: Final answer
    x = 68,798.25

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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.