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Finding the Fourth Proportional to 80,466.88, 111,045.28 and 44,660.40

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Solution

The fourth proportional to 80,466.88, 111,045.28 and 44,660.40 is: 61,631.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,466.88 : 111,045.28 = 44,660.40 : x
  2. Step 2: Convert to fraction form
    80,466.88/111,045.28 = 44,660.40/x
  3. Step 3: Cross multiply
    80,466.88x = 111,045.28 × 44,660.40
  4. Step 4: Simplify right side
    80,466.88x = 4,959,326,622.91
  5. Step 5: Solve for x
    x = 4,959,326,622.91/80,466.88
  6. Step 6: Final answer
    x = 61,631.90

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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.