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Finding the Fourth Proportional to 248,791.73, 343,061.28 and 168,079.13

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Solution

The fourth proportional to 248,791.73, 343,061.28 and 168,079.13 is: 231,765.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,791.73 : 343,061.28 = 168,079.13 : x
  2. Step 2: Convert to fraction form
    248,791.73/343,061.28 = 168,079.13/x
  3. Step 3: Cross multiply
    248,791.73x = 343,061.28 × 168,079.13
  4. Step 4: Simplify right side
    248,791.73x = 57,661,441,479.09
  5. Step 5: Solve for x
    x = 57,661,441,479.09/248,791.73
  6. Step 6: Final answer
    x = 231,765.91

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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.