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Finding the Fourth Proportional to 71,333.46, 107,001.41 and 26,981.10

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Solution

The fourth proportional to 71,333.46, 107,001.41 and 26,981.10 is: 40,472.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,333.46 : 107,001.41 = 26,981.10 : x
  2. Step 2: Convert to fraction form
    71,333.46/107,001.41 = 26,981.10/x
  3. Step 3: Cross multiply
    71,333.46x = 107,001.41 × 26,981.10
  4. Step 4: Simplify right side
    71,333.46x = 2,887,015,608.45
  5. Step 5: Solve for x
    x = 2,887,015,608.45/71,333.46
  6. Step 6: Final answer
    x = 40,472.11

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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.