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Finding the Fourth Proportional to 71,593.76, 107,289.10 and 52,725.84

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Solution

The fourth proportional to 71,593.76, 107,289.10 and 52,725.84 is: 79,013.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,593.76 : 107,289.10 = 52,725.84 : x
  2. Step 2: Convert to fraction form
    71,593.76/107,289.10 = 52,725.84/x
  3. Step 3: Cross multiply
    71,593.76x = 107,289.10 × 52,725.84
  4. Step 4: Simplify right side
    71,593.76x = 5,656,907,920.34
  5. Step 5: Solve for x
    x = 5,656,907,920.34/71,593.76
  6. Step 6: Final answer
    x = 79,013.98

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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.