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Finding the Fourth Proportional to 107,881.74, 148,876.11 and 60,134.46

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Solution

The fourth proportional to 107,881.74, 148,876.11 and 60,134.46 is: 82,985.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,881.74 : 148,876.11 = 60,134.46 : x
  2. Step 2: Convert to fraction form
    107,881.74/148,876.11 = 60,134.46/x
  3. Step 3: Cross multiply
    107,881.74x = 148,876.11 × 60,134.46
  4. Step 4: Simplify right side
    107,881.74x = 8,952,584,481.75
  5. Step 5: Solve for x
    x = 8,952,584,481.75/107,881.74
  6. Step 6: Final answer
    x = 82,985.17

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.