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Finding the Fourth Proportional to 95,980.42, 143,853.90 and 67,908.57

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Solution

The fourth proportional to 95,980.42, 143,853.90 and 67,908.57 is: 101,780.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,980.42 : 143,853.90 = 67,908.57 : x
  2. Step 2: Convert to fraction form
    95,980.42/143,853.90 = 67,908.57/x
  3. Step 3: Cross multiply
    95,980.42x = 143,853.90 × 67,908.57
  4. Step 4: Simplify right side
    95,980.42x = 9,768,912,635.40
  5. Step 5: Solve for x
    x = 9,768,912,635.40/95,980.42
  6. Step 6: Final answer
    x = 101,780.26

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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.