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Finding the Fourth Proportional to 110,719.76, 152,793.69 and 60,418.76

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Solution

The fourth proportional to 110,719.76, 152,793.69 and 60,418.76 is: 83,378.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,719.76 : 152,793.69 = 60,418.76 : x
  2. Step 2: Convert to fraction form
    110,719.76/152,793.69 = 60,418.76/x
  3. Step 3: Cross multiply
    110,719.76x = 152,793.69 × 60,418.76
  4. Step 4: Simplify right side
    110,719.76x = 9,231,605,285.62
  5. Step 5: Solve for x
    x = 9,231,605,285.62/110,719.76
  6. Step 6: Final answer
    x = 83,378.12

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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.