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Finding the Fourth Proportional to 108,514.70, 162,512.85 and 66,524.30

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Solution

The fourth proportional to 108,514.70, 162,512.85 and 66,524.30 is: 99,627.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,514.70 : 162,512.85 = 66,524.30 : x
  2. Step 2: Convert to fraction form
    108,514.70/162,512.85 = 66,524.30/x
  3. Step 3: Cross multiply
    108,514.70x = 162,512.85 × 66,524.30
  4. Step 4: Simplify right side
    108,514.70x = 10,811,053,587.26
  5. Step 5: Solve for x
    x = 10,811,053,587.26/108,514.70
  6. Step 6: Final answer
    x = 99,627.55

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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.