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Finding the Fourth Proportional to 71,937.62, 99,274.82 and 41,724.22

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Solution

The fourth proportional to 71,937.62, 99,274.82 and 41,724.22 is: 57,579.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,937.62 : 99,274.82 = 41,724.22 : x
  2. Step 2: Convert to fraction form
    71,937.62/99,274.82 = 41,724.22/x
  3. Step 3: Cross multiply
    71,937.62x = 99,274.82 × 41,724.22
  4. Step 4: Simplify right side
    71,937.62x = 4,142,164,430.14
  5. Step 5: Solve for x
    x = 4,142,164,430.14/71,937.62
  6. Step 6: Final answer
    x = 57,579.95

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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.