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Finding the Fourth Proportional to 132,462.60, 198,888.30 and 102,913.80

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Solution

The fourth proportional to 132,462.60, 198,888.30 and 102,913.80 is: 154,521.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,462.60 : 198,888.30 = 102,913.80 : x
  2. Step 2: Convert to fraction form
    132,462.60/198,888.30 = 102,913.80/x
  3. Step 3: Cross multiply
    132,462.60x = 198,888.30 × 102,913.80
  4. Step 4: Simplify right side
    132,462.60x = 20,468,350,728.54
  5. Step 5: Solve for x
    x = 20,468,350,728.54/132,462.60
  6. Step 6: Final answer
    x = 154,521.73

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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.