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Finding the Fourth Proportional to 80,774.66, 121,186.70 and 41,359.66

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Solution

The fourth proportional to 80,774.66, 121,186.70 and 41,359.66 is: 62,052.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,774.66 : 121,186.70 = 41,359.66 : x
  2. Step 2: Convert to fraction form
    80,774.66/121,186.70 = 41,359.66/x
  3. Step 3: Cross multiply
    80,774.66x = 121,186.70 × 41,359.66
  4. Step 4: Simplify right side
    80,774.66x = 5,012,240,708.52
  5. Step 5: Solve for x
    x = 5,012,240,708.52/80,774.66
  6. Step 6: Final answer
    x = 62,052.14

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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.