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Finding the Fourth Proportional to 248,448.78, 342,514.80 and 167,748.48

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Solution

The fourth proportional to 248,448.78, 342,514.80 and 167,748.48 is: 231,260.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,448.78 : 342,514.80 = 167,748.48 : x
  2. Step 2: Convert to fraction form
    248,448.78/342,514.80 = 167,748.48/x
  3. Step 3: Cross multiply
    248,448.78x = 342,514.80 × 167,748.48
  4. Step 4: Simplify right side
    248,448.78x = 57,456,337,077.50
  5. Step 5: Solve for x
    x = 57,456,337,077.50/248,448.78
  6. Step 6: Final answer
    x = 231,260.29

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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.