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Finding the Fourth Proportional to 115,170.48, 158,880.96 and 67,394.52

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Solution

The fourth proportional to 115,170.48, 158,880.96 and 67,394.52 is: 92,972.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,170.48 : 158,880.96 = 67,394.52 : x
  2. Step 2: Convert to fraction form
    115,170.48/158,880.96 = 67,394.52/x
  3. Step 3: Cross multiply
    115,170.48x = 158,880.96 × 67,394.52
  4. Step 4: Simplify right side
    115,170.48x = 10,707,706,036.34
  5. Step 5: Solve for x
    x = 10,707,706,036.34/115,170.48
  6. Step 6: Final answer
    x = 92,972.66

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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.