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Finding the Fourth Proportional to 83,658.65, 125,488.15 and 58,809.74

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Solution

The fourth proportional to 83,658.65, 125,488.15 and 58,809.74 is: 88,214.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,658.65 : 125,488.15 = 58,809.74 : x
  2. Step 2: Convert to fraction form
    83,658.65/125,488.15 = 58,809.74/x
  3. Step 3: Cross multiply
    83,658.65x = 125,488.15 × 58,809.74
  4. Step 4: Simplify right side
    83,658.65x = 7,379,924,700.12
  5. Step 5: Solve for x
    x = 7,379,924,700.12/83,658.65
  6. Step 6: Final answer
    x = 88,214.73

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1.5x scale

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.