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Finding the Fourth Proportional to 168,616.75, 232,691.25 and 93,165.25

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Solution

The fourth proportional to 168,616.75, 232,691.25 and 93,165.25 is: 128,568.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,616.75 : 232,691.25 = 93,165.25 : x
  2. Step 2: Convert to fraction form
    168,616.75/232,691.25 = 93,165.25/x
  3. Step 3: Cross multiply
    168,616.75x = 232,691.25 × 93,165.25
  4. Step 4: Simplify right side
    168,616.75x = 21,678,738,479.06
  5. Step 5: Solve for x
    x = 21,678,738,479.06/168,616.75
  6. Step 6: Final answer
    x = 128,568.12

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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.