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Finding the Fourth Proportional to 80,387.90, 110,941.95 and 44,589.48

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Solution

The fourth proportional to 80,387.90, 110,941.95 and 44,589.48 is: 61,537.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,387.90 : 110,941.95 = 44,589.48 : x
  2. Step 2: Convert to fraction form
    80,387.90/110,941.95 = 44,589.48/x
  3. Step 3: Cross multiply
    80,387.90x = 110,941.95 × 44,589.48
  4. Step 4: Simplify right side
    80,387.90x = 4,946,843,860.69
  5. Step 5: Solve for x
    x = 4,946,843,860.69/80,387.90
  6. Step 6: Final answer
    x = 61,537.17

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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.