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Finding the Fourth Proportional to 132,480.15, 198,630.30 and 67,404.63

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Solution

The fourth proportional to 132,480.15, 198,630.30 and 67,404.63 is: 101,061.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,480.15 : 198,630.30 = 67,404.63 : x
  2. Step 2: Convert to fraction form
    132,480.15/198,630.30 = 67,404.63/x
  3. Step 3: Cross multiply
    132,480.15x = 198,630.30 × 67,404.63
  4. Step 4: Simplify right side
    132,480.15x = 13,388,601,878.29
  5. Step 5: Solve for x
    x = 13,388,601,878.29/132,480.15
  6. Step 6: Final answer
    x = 101,061.19

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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.