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Finding the Fourth Proportional to 66,828, 92,197.20 and 44,177.76

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Solution

The fourth proportional to 66,828, 92,197.20 and 44,177.76 is: 60,948.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,828 : 92,197.20 = 44,177.76 : x
  2. Step 2: Convert to fraction form
    66,828/92,197.20 = 44,177.76/x
  3. Step 3: Cross multiply
    66,828x = 92,197.20 × 44,177.76
  4. Step 4: Simplify right side
    66,828x = 4,073,065,774.27
  5. Step 5: Solve for x
    x = 4,073,065,774.27/66,828
  6. Step 6: Final answer
    x = 60,948.49

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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.