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Finding the Fourth Proportional to 71,933.30, 107,915.53 and 27,560.05

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Solution

The fourth proportional to 71,933.30, 107,915.53 and 27,560.05 is: 41,346.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,933.30 : 107,915.53 = 27,560.05 : x
  2. Step 2: Convert to fraction form
    71,933.30/107,915.53 = 27,560.05/x
  3. Step 3: Cross multiply
    71,933.30x = 107,915.53 × 27,560.05
  4. Step 4: Simplify right side
    71,933.30x = 2,974,157,402.58
  5. Step 5: Solve for x
    x = 2,974,157,402.58/71,933.30
  6. Step 6: Final answer
    x = 41,346.04

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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.