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Finding the Fourth Proportional to 132,098.80, 198,196.80 and 43,355.20

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Solution

The fourth proportional to 132,098.80, 198,196.80 and 43,355.20 is: 65,048.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,098.80 : 198,196.80 = 43,355.20 : x
  2. Step 2: Convert to fraction form
    132,098.80/198,196.80 = 43,355.20/x
  3. Step 3: Cross multiply
    132,098.80x = 198,196.80 × 43,355.20
  4. Step 4: Simplify right side
    132,098.80x = 8,592,861,903.36
  5. Step 5: Solve for x
    x = 8,592,861,903.36/132,098.80
  6. Step 6: Final answer
    x = 65,048.75

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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.