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Finding the Fourth Proportional to 168,393.12, 232,381.02 and 92,940

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Solution

The fourth proportional to 168,393.12, 232,381.02 and 92,940 is: 128,256.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,393.12 : 232,381.02 = 92,940 : x
  2. Step 2: Convert to fraction form
    168,393.12/232,381.02 = 92,940/x
  3. Step 3: Cross multiply
    168,393.12x = 232,381.02 × 92,940
  4. Step 4: Simplify right side
    168,393.12x = 21,597,491,998.80
  5. Step 5: Solve for x
    x = 21,597,491,998.80/168,393.12
  6. Step 6: Final answer
    x = 128,256.38

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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.