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Finding the Fourth Proportional to 115,167.98, 158,867.66 and 67,412.14

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Solution

The fourth proportional to 115,167.98, 158,867.66 and 67,412.14 is: 92,991.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,167.98 : 158,867.66 = 67,412.14 : x
  2. Step 2: Convert to fraction form
    115,167.98/158,867.66 = 67,412.14/x
  3. Step 3: Cross multiply
    115,167.98x = 158,867.66 × 67,412.14
  4. Step 4: Simplify right side
    115,167.98x = 10,709,608,937.39
  5. Step 5: Solve for x
    x = 10,709,608,937.39/115,167.98
  6. Step 6: Final answer
    x = 92,991.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.