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Finding the Fourth Proportional to 158,094.52, 218,172.15 and 86,472.97

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Solution

The fourth proportional to 158,094.52, 218,172.15 and 86,472.97 is: 119,333.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,094.52 : 218,172.15 = 86,472.97 : x
  2. Step 2: Convert to fraction form
    158,094.52/218,172.15 = 86,472.97/x
  3. Step 3: Cross multiply
    158,094.52x = 218,172.15 × 86,472.97
  4. Step 4: Simplify right side
    158,094.52x = 18,865,993,236.36
  5. Step 5: Solve for x
    x = 18,865,993,236.36/158,094.52
  6. Step 6: Final answer
    x = 119,333.63

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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.