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Finding the Fourth Proportional to 95,129.67, 131,279.90 and 57,396.63

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Solution

The fourth proportional to 95,129.67, 131,279.90 and 57,396.63 is: 79,207.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,129.67 : 131,279.90 = 57,396.63 : x
  2. Step 2: Convert to fraction form
    95,129.67/131,279.90 = 57,396.63/x
  3. Step 3: Cross multiply
    95,129.67x = 131,279.90 × 57,396.63
  4. Step 4: Simplify right side
    95,129.67x = 7,535,023,333.83
  5. Step 5: Solve for x
    x = 7,535,023,333.83/95,129.67
  6. Step 6: Final answer
    x = 79,207.92

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.