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Finding the Fourth Proportional to 80,354.61, 110,885.70 and 44,543.85

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Solution

The fourth proportional to 80,354.61, 110,885.70 and 44,543.85 is: 61,468.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,354.61 : 110,885.70 = 44,543.85 : x
  2. Step 2: Convert to fraction form
    80,354.61/110,885.70 = 44,543.85/x
  3. Step 3: Cross multiply
    80,354.61x = 110,885.70 × 44,543.85
  4. Step 4: Simplify right side
    80,354.61x = 4,939,275,987.95
  5. Step 5: Solve for x
    x = 4,939,275,987.95/80,354.61
  6. Step 6: Final answer
    x = 61,468.48

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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.