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Finding the Fourth Proportional to 83,207.70, 124,811.55 and 49,527.90

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Solution

The fourth proportional to 83,207.70, 124,811.55 and 49,527.90 is: 74,291.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,207.70 : 124,811.55 = 49,527.90 : x
  2. Step 2: Convert to fraction form
    83,207.70/124,811.55 = 49,527.90/x
  3. Step 3: Cross multiply
    83,207.70x = 124,811.55 × 49,527.90
  4. Step 4: Simplify right side
    83,207.70x = 6,181,653,967.25
  5. Step 5: Solve for x
    x = 6,181,653,967.25/83,207.70
  6. Step 6: Final answer
    x = 74,291.85

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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.