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Finding the Fourth Proportional to 62,129.50, 93,196.41 and 20,575.42

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Solution

The fourth proportional to 62,129.50, 93,196.41 and 20,575.42 is: 30,863.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,129.50 : 93,196.41 = 20,575.42 : x
  2. Step 2: Convert to fraction form
    62,129.50/93,196.41 = 20,575.42/x
  3. Step 3: Cross multiply
    62,129.50x = 93,196.41 × 20,575.42
  4. Step 4: Simplify right side
    62,129.50x = 1,917,555,278.24
  5. Step 5: Solve for x
    x = 1,917,555,278.24/62,129.50
  6. Step 6: Final answer
    x = 30,863.85

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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.