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Finding the Fourth Proportional to 80,766.72, 111,460.67 and 44,472

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Solution

The fourth proportional to 80,766.72, 111,460.67 and 44,472 is: 61,372.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,766.72 : 111,460.67 = 44,472 : x
  2. Step 2: Convert to fraction form
    80,766.72/111,460.67 = 44,472/x
  3. Step 3: Cross multiply
    80,766.72x = 111,460.67 × 44,472
  4. Step 4: Simplify right side
    80,766.72x = 4,956,878,916.24
  5. Step 5: Solve for x
    x = 4,956,878,916.24/80,766.72
  6. Step 6: Final answer
    x = 61,372.79

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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.