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Finding the Fourth Proportional to 83,700, 125,584.16 and 44,246.56

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Solution

The fourth proportional to 83,700, 125,584.16 and 44,246.56 is: 66,387.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,700 : 125,584.16 = 44,246.56 : x
  2. Step 2: Convert to fraction form
    83,700/125,584.16 = 44,246.56/x
  3. Step 3: Cross multiply
    83,700x = 125,584.16 × 44,246.56
  4. Step 4: Simplify right side
    83,700x = 5,556,667,070.49
  5. Step 5: Solve for x
    x = 5,556,667,070.49/83,700
  6. Step 6: Final answer
    x = 66,387.90

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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.