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Finding the Fourth Proportional to 71,825.52, 99,121.59 and 41,203.88

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Solution

The fourth proportional to 71,825.52, 99,121.59 and 41,203.88 is: 56,862.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,825.52 : 99,121.59 = 41,203.88 : x
  2. Step 2: Convert to fraction form
    71,825.52/99,121.59 = 41,203.88/x
  3. Step 3: Cross multiply
    71,825.52x = 99,121.59 × 41,203.88
  4. Step 4: Simplify right side
    71,825.52x = 4,084,194,099.77
  5. Step 5: Solve for x
    x = 4,084,194,099.77/71,825.52
  6. Step 6: Final answer
    x = 56,862.72

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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.