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Finding the Fourth Proportional to 79,160.91, 118,731.57 and 29,239.90

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Solution

The fourth proportional to 79,160.91, 118,731.57 and 29,239.90 is: 43,856.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,160.91 : 118,731.57 = 29,239.90 : x
  2. Step 2: Convert to fraction form
    79,160.91/118,731.57 = 29,239.90/x
  3. Step 3: Cross multiply
    79,160.91x = 118,731.57 × 29,239.90
  4. Step 4: Simplify right side
    79,160.91x = 3,471,699,659.50
  5. Step 5: Solve for x
    x = 3,471,699,659.50/79,160.91
  6. Step 6: Final answer
    x = 43,856.24

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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.