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Finding the Fourth Proportional to 108,514.70, 162,772.05 and 67,042.70

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Solution

The fourth proportional to 108,514.70, 162,772.05 and 67,042.70 is: 100,564.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,514.70 : 162,772.05 = 67,042.70 : x
  2. Step 2: Convert to fraction form
    108,514.70/162,772.05 = 67,042.70/x
  3. Step 3: Cross multiply
    108,514.70x = 162,772.05 × 67,042.70
  4. Step 4: Simplify right side
    108,514.70x = 10,912,677,716.54
  5. Step 5: Solve for x
    x = 10,912,677,716.54/108,514.70
  6. Step 6: Final answer
    x = 100,564.05

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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.