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Finding the Fourth Proportional to 127,808.53, 191,691.99 and 60,340.42

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Solution

The fourth proportional to 127,808.53, 191,691.99 and 60,340.42 is: 90,500.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,808.53 : 191,691.99 = 60,340.42 : x
  2. Step 2: Convert to fraction form
    127,808.53/191,691.99 = 60,340.42/x
  3. Step 3: Cross multiply
    127,808.53x = 191,691.99 × 60,340.42
  4. Step 4: Simplify right side
    127,808.53x = 11,566,774,708.01
  5. Step 5: Solve for x
    x = 11,566,774,708.01/127,808.53
  6. Step 6: Final answer
    x = 90,500.81

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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.