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Finding the Fourth Proportional to 83,855.75, 125,304.54 and 63,754.79

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Solution

The fourth proportional to 83,855.75, 125,304.54 and 63,754.79 is: 95,267.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,855.75 : 125,304.54 = 63,754.79 : x
  2. Step 2: Convert to fraction form
    83,855.75/125,304.54 = 63,754.79/x
  3. Step 3: Cross multiply
    83,855.75x = 125,304.54 × 63,754.79
  4. Step 4: Simplify right side
    83,855.75x = 7,988,764,947.01
  5. Step 5: Solve for x
    x = 7,988,764,947.01/83,855.75
  6. Step 6: Final answer
    x = 95,267.94

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.