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Finding the Fourth Proportional to 127,672.74, 191,217.24 and 61,159.86

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Solution

The fourth proportional to 127,672.74, 191,217.24 and 61,159.86 is: 91,599.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,672.74 : 191,217.24 = 61,159.86 : x
  2. Step 2: Convert to fraction form
    127,672.74/191,217.24 = 61,159.86/x
  3. Step 3: Cross multiply
    127,672.74x = 191,217.24 × 61,159.86
  4. Step 4: Simplify right side
    127,672.74x = 11,694,819,627.99
  5. Step 5: Solve for x
    x = 11,694,819,627.99/127,672.74
  6. Step 6: Final answer
    x = 91,599.97

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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.