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Finding the Fourth Proportional to 71,141.32, 106,724.94 and 24,383.80

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Solution

The fourth proportional to 71,141.32, 106,724.94 and 24,383.80 is: 36,580.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,141.32 : 106,724.94 = 24,383.80 : x
  2. Step 2: Convert to fraction form
    71,141.32/106,724.94 = 24,383.80/x
  3. Step 3: Cross multiply
    71,141.32x = 106,724.94 × 24,383.80
  4. Step 4: Simplify right side
    71,141.32x = 2,602,359,591.97
  5. Step 5: Solve for x
    x = 2,602,359,591.97/71,141.32
  6. Step 6: Final answer
    x = 36,580.14

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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.