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Finding the Fourth Proportional to 168,780.96, 232,940.88 and 101,700

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Solution

The fourth proportional to 168,780.96, 232,940.88 and 101,700 is: 140,359.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,780.96 : 232,940.88 = 101,700 : x
  2. Step 2: Convert to fraction form
    168,780.96/232,940.88 = 101,700/x
  3. Step 3: Cross multiply
    168,780.96x = 232,940.88 × 101,700
  4. Step 4: Simplify right side
    168,780.96x = 23,690,087,496
  5. Step 5: Solve for x
    x = 23,690,087,496/168,780.96
  6. Step 6: Final answer
    x = 140,359.95

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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.