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Finding the Fourth Proportional to 132,446.60, 198,669.90 and 126,302.60

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Solution

The fourth proportional to 132,446.60, 198,669.90 and 126,302.60 is: 189,453.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,446.60 : 198,669.90 = 126,302.60 : x
  2. Step 2: Convert to fraction form
    132,446.60/198,669.90 = 126,302.60/x
  3. Step 3: Cross multiply
    132,446.60x = 198,669.90 × 126,302.60
  4. Step 4: Simplify right side
    132,446.60x = 25,092,524,911.74
  5. Step 5: Solve for x
    x = 25,092,524,911.74/132,446.60
  6. Step 6: Final answer
    x = 189,453.90

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1.5x scale

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.