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Finding the Fourth Proportional to 269,873.80, 372,440.34 and 149,014.64

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Solution

The fourth proportional to 269,873.80, 372,440.34 and 149,014.64 is: 205,648.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,873.80 : 372,440.34 = 149,014.64 : x
  2. Step 2: Convert to fraction form
    269,873.80/372,440.34 = 149,014.64/x
  3. Step 3: Cross multiply
    269,873.80x = 372,440.34 × 149,014.64
  4. Step 4: Simplify right side
    269,873.80x = 55,499,063,186.58
  5. Step 5: Solve for x
    x = 55,499,063,186.58/269,873.80
  6. Step 6: Final answer
    x = 205,648.21

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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.