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Finding the Fourth Proportional to 95,419.67, 143,152.79 and 67,394.48

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Solution

The fourth proportional to 95,419.67, 143,152.79 and 67,394.48 is: 101,108.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,419.67 : 143,152.79 = 67,394.48 : x
  2. Step 2: Convert to fraction form
    95,419.67/143,152.79 = 67,394.48/x
  3. Step 3: Cross multiply
    95,419.67x = 143,152.79 × 67,394.48
  4. Step 4: Simplify right side
    95,419.67x = 9,647,706,789.86
  5. Step 5: Solve for x
    x = 9,647,706,789.86/95,419.67
  6. Step 6: Final answer
    x = 101,108.16

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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.