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Finding the Fourth Proportional to 61,881.20, 92,821.80 and 44,514.80

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Solution

The fourth proportional to 61,881.20, 92,821.80 and 44,514.80 is: 66,772.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,881.20 : 92,821.80 = 44,514.80 : x
  2. Step 2: Convert to fraction form
    61,881.20/92,821.80 = 44,514.80/x
  3. Step 3: Cross multiply
    61,881.20x = 92,821.80 × 44,514.80
  4. Step 4: Simplify right side
    61,881.20x = 4,131,943,862.64
  5. Step 5: Solve for x
    x = 4,131,943,862.64/61,881.20
  6. Step 6: Final answer
    x = 66,772.20

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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.