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Finding the Fourth Proportional to 67,499.70, 101,249.55 and 67,110.90

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Solution

The fourth proportional to 67,499.70, 101,249.55 and 67,110.90 is: 100,666.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,499.70 : 101,249.55 = 67,110.90 : x
  2. Step 2: Convert to fraction form
    67,499.70/101,249.55 = 67,110.90/x
  3. Step 3: Cross multiply
    67,499.70x = 101,249.55 × 67,110.90
  4. Step 4: Simplify right side
    67,499.70x = 6,794,948,425.10
  5. Step 5: Solve for x
    x = 6,794,948,425.10/67,499.70
  6. Step 6: Final answer
    x = 100,666.35

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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.