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Finding the Fourth Proportional to 132,438, 198,525.78 and 62,191.56

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Solution

The fourth proportional to 132,438, 198,525.78 and 62,191.56 is: 93,225.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,438 : 198,525.78 = 62,191.56 : x
  2. Step 2: Convert to fraction form
    132,438/198,525.78 = 62,191.56/x
  3. Step 3: Cross multiply
    132,438x = 198,525.78 × 62,191.56
  4. Step 4: Simplify right side
    132,438x = 12,346,627,958.42
  5. Step 5: Solve for x
    x = 12,346,627,958.42/132,438
  6. Step 6: Final answer
    x = 93,225.72

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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.