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Finding the Fourth Proportional to 269,693.20, 372,178.20 and 148,837.60

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Solution

The fourth proportional to 269,693.20, 372,178.20 and 148,837.60 is: 205,396.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,693.20 : 372,178.20 = 148,837.60 : x
  2. Step 2: Convert to fraction form
    269,693.20/372,178.20 = 148,837.60/x
  3. Step 3: Cross multiply
    269,693.20x = 372,178.20 × 148,837.60
  4. Step 4: Simplify right side
    269,693.20x = 55,394,110,060.32
  5. Step 5: Solve for x
    x = 55,394,110,060.32/269,693.20
  6. Step 6: Final answer
    x = 205,396.76

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1.5x scale

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.