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Finding the Fourth Proportional to 70,834.14, 106,251.24 and 67,759.18

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Solution

The fourth proportional to 70,834.14, 106,251.24 and 67,759.18 is: 101,638.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,834.14 : 106,251.24 = 67,759.18 : x
  2. Step 2: Convert to fraction form
    70,834.14/106,251.24 = 67,759.18/x
  3. Step 3: Cross multiply
    70,834.14x = 106,251.24 × 67,759.18
  4. Step 4: Simplify right side
    70,834.14x = 7,199,496,896.38
  5. Step 5: Solve for x
    x = 7,199,496,896.38/70,834.14
  6. Step 6: Final answer
    x = 101,638.80

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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.