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Finding the Fourth Proportional to 248,326.97, 342,680.88 and 140,902.89

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Solution

The fourth proportional to 248,326.97, 342,680.88 and 140,902.89 is: 194,440.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,326.97 : 342,680.88 = 140,902.89 : x
  2. Step 2: Convert to fraction form
    248,326.97/342,680.88 = 140,902.89/x
  3. Step 3: Cross multiply
    248,326.97x = 342,680.88 × 140,902.89
  4. Step 4: Simplify right side
    248,326.97x = 48,284,726,718.08
  5. Step 5: Solve for x
    x = 48,284,726,718.08/248,326.97
  6. Step 6: Final answer
    x = 194,440.13

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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.