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Finding the Fourth Proportional to 114,876.27, 158,505.82 and 67,120.38

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Solution

The fourth proportional to 114,876.27, 158,505.82 and 67,120.38 is: 92,612.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,876.27 : 158,505.82 = 67,120.38 : x
  2. Step 2: Convert to fraction form
    114,876.27/158,505.82 = 67,120.38/x
  3. Step 3: Cross multiply
    114,876.27x = 158,505.82 × 67,120.38
  4. Step 4: Simplify right side
    114,876.27x = 10,638,970,702.81
  5. Step 5: Solve for x
    x = 10,638,970,702.81/114,876.27
  6. Step 6: Final answer
    x = 92,612.43

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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.