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Finding the Fourth Proportional to 107,879.70, 161,892.45 and 60,494.70

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Solution

The fourth proportional to 107,879.70, 161,892.45 and 60,494.70 is: 90,782.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,879.70 : 161,892.45 = 60,494.70 : x
  2. Step 2: Convert to fraction form
    107,879.70/161,892.45 = 60,494.70/x
  3. Step 3: Cross multiply
    107,879.70x = 161,892.45 × 60,494.70
  4. Step 4: Simplify right side
    107,879.70x = 9,793,635,195.02
  5. Step 5: Solve for x
    x = 9,793,635,195.02/107,879.70
  6. Step 6: Final answer
    x = 90,782.93

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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.