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Finding the Fourth Proportional to 198,501.88, 297,752.10 and 86,167.44

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Solution

The fourth proportional to 198,501.88, 297,752.10 and 86,167.44 is: 129,250.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,501.88 : 297,752.10 = 86,167.44 : x
  2. Step 2: Convert to fraction form
    198,501.88/297,752.10 = 86,167.44/x
  3. Step 3: Cross multiply
    198,501.88x = 297,752.10 × 86,167.44
  4. Step 4: Simplify right side
    198,501.88x = 25,656,536,211.62
  5. Step 5: Solve for x
    x = 25,656,536,211.62/198,501.88
  6. Step 6: Final answer
    x = 129,250.85

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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.