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Finding the Fourth Proportional to 71,881.62, 107,837.01 and 25,167.30

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Solution

The fourth proportional to 71,881.62, 107,837.01 and 25,167.30 is: 37,756.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,881.62 : 107,837.01 = 25,167.30 : x
  2. Step 2: Convert to fraction form
    71,881.62/107,837.01 = 25,167.30/x
  3. Step 3: Cross multiply
    71,881.62x = 107,837.01 × 25,167.30
  4. Step 4: Simplify right side
    71,881.62x = 2,713,966,381.77
  5. Step 5: Solve for x
    x = 2,713,966,381.77/71,881.62
  6. Step 6: Final answer
    x = 37,756.05

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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.