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Finding the Fourth Proportional to 69,722.88, 96,470.90 and 60,788.98

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Solution

The fourth proportional to 69,722.88, 96,470.90 and 60,788.98 is: 84,109.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,722.88 : 96,470.90 = 60,788.98 : x
  2. Step 2: Convert to fraction form
    69,722.88/96,470.90 = 60,788.98/x
  3. Step 3: Cross multiply
    69,722.88x = 96,470.90 × 60,788.98
  4. Step 4: Simplify right side
    69,722.88x = 5,864,367,610.68
  5. Step 5: Solve for x
    x = 5,864,367,610.68/69,722.88
  6. Step 6: Final answer
    x = 84,109.66

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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.