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Finding the Fourth Proportional to 131,167.65, 196,751.47 and 36,397.86

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Solution

The fourth proportional to 131,167.65, 196,751.47 and 36,397.86 is: 54,596.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,167.65 : 196,751.47 = 36,397.86 : x
  2. Step 2: Convert to fraction form
    131,167.65/196,751.47 = 36,397.86/x
  3. Step 3: Cross multiply
    131,167.65x = 196,751.47 × 36,397.86
  4. Step 4: Simplify right side
    131,167.65x = 7,161,332,459.85
  5. Step 5: Solve for x
    x = 7,161,332,459.85/131,167.65
  6. Step 6: Final answer
    x = 54,596.79

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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.