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Finding the Fourth Proportional to 248,630.40, 342,992.40 and 168,086.16

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Solution

The fourth proportional to 248,630.40, 342,992.40 and 168,086.16 is: 231,879.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,630.40 : 342,992.40 = 168,086.16 : x
  2. Step 2: Convert to fraction form
    248,630.40/342,992.40 = 168,086.16/x
  3. Step 3: Cross multiply
    248,630.40x = 342,992.40 × 168,086.16
  4. Step 4: Simplify right side
    248,630.40x = 57,652,275,425.18
  5. Step 5: Solve for x
    x = 57,652,275,425.18/248,630.40
  6. Step 6: Final answer
    x = 231,879.43

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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.