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Finding the Fourth Proportional to 248,789.76, 343,058.70 and 168,077.16

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Solution

The fourth proportional to 248,789.76, 343,058.70 and 168,077.16 is: 231,763.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,789.76 : 343,058.70 = 168,077.16 : x
  2. Step 2: Convert to fraction form
    248,789.76/343,058.70 = 168,077.16/x
  3. Step 3: Cross multiply
    248,789.76x = 343,058.70 × 168,077.16
  4. Step 4: Simplify right side
    248,789.76x = 57,660,332,009.29
  5. Step 5: Solve for x
    x = 57,660,332,009.29/248,789.76
  6. Step 6: Final answer
    x = 231,763.28

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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.