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Finding the Fourth Proportional to 66,494.84, 99,789.03 and 60,142.41

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Solution

The fourth proportional to 66,494.84, 99,789.03 and 60,142.41 is: 90,255.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,494.84 : 99,789.03 = 60,142.41 : x
  2. Step 2: Convert to fraction form
    66,494.84/99,789.03 = 60,142.41/x
  3. Step 3: Cross multiply
    66,494.84x = 99,789.03 × 60,142.41
  4. Step 4: Simplify right side
    66,494.84x = 6,001,552,755.76
  5. Step 5: Solve for x
    x = 6,001,552,755.76/66,494.84
  6. Step 6: Final answer
    x = 90,255.92

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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.