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Finding the Fourth Proportional to 60,794.88, 91,224.42 and 43,139.61

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Solution

The fourth proportional to 60,794.88, 91,224.42 and 43,139.61 is: 64,732.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,794.88 : 91,224.42 = 43,139.61 : x
  2. Step 2: Convert to fraction form
    60,794.88/91,224.42 = 43,139.61/x
  3. Step 3: Cross multiply
    60,794.88x = 91,224.42 × 43,139.61
  4. Step 4: Simplify right side
    60,794.88x = 3,935,385,739.50
  5. Step 5: Solve for x
    x = 3,935,385,739.50/60,794.88
  6. Step 6: Final answer
    x = 64,732.19

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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.