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Finding the Fourth Proportional to 121,691.02, 182,092.47 and 71,795.02

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Solution

The fourth proportional to 121,691.02, 182,092.47 and 71,795.02 is: 107,430.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,691.02 : 182,092.47 = 71,795.02 : x
  2. Step 2: Convert to fraction form
    121,691.02/182,092.47 = 71,795.02/x
  3. Step 3: Cross multiply
    121,691.02x = 182,092.47 × 71,795.02
  4. Step 4: Simplify right side
    121,691.02x = 13,073,332,525.50
  5. Step 5: Solve for x
    x = 13,073,332,525.50/121,691.02
  6. Step 6: Final answer
    x = 107,430.54

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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.