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Finding the Fourth Proportional to 248,381.90, 372,363.87 and 108,034.82

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Solution

The fourth proportional to 248,381.90, 372,363.87 and 108,034.82 is: 161,961.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,381.90 : 372,363.87 = 108,034.82 : x
  2. Step 2: Convert to fraction form
    248,381.90/372,363.87 = 108,034.82/x
  3. Step 3: Cross multiply
    248,381.90x = 372,363.87 × 108,034.82
  4. Step 4: Simplify right side
    248,381.90x = 40,228,263,669.95
  5. Step 5: Solve for x
    x = 40,228,263,669.95/248,381.90
  6. Step 6: Final answer
    x = 161,961.33

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.