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Finding the Fourth Proportional to 168,469.61, 232,486.27 and 91,988.46

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Solution

The fourth proportional to 168,469.61, 232,486.27 and 91,988.46 is: 126,943.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,469.61 : 232,486.27 = 91,988.46 : x
  2. Step 2: Convert to fraction form
    168,469.61/232,486.27 = 91,988.46/x
  3. Step 3: Cross multiply
    168,469.61x = 232,486.27 × 91,988.46
  4. Step 4: Simplify right side
    168,469.61x = 21,386,053,718.47
  5. Step 5: Solve for x
    x = 21,386,053,718.47/168,469.61
  6. Step 6: Final answer
    x = 126,943.10

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1.5x scale

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.