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Finding the Fourth Proportional to 132,057.40, 198,110.10 and 43,286.20

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Solution

The fourth proportional to 132,057.40, 198,110.10 and 43,286.20 is: 64,937.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,057.40 : 198,110.10 = 43,286.20 : x
  2. Step 2: Convert to fraction form
    132,057.40/198,110.10 = 43,286.20/x
  3. Step 3: Cross multiply
    132,057.40x = 198,110.10 × 43,286.20
  4. Step 4: Simplify right side
    132,057.40x = 8,575,433,410.62
  5. Step 5: Solve for x
    x = 8,575,433,410.62/132,057.40
  6. Step 6: Final answer
    x = 64,937.17

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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.