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Finding the Fourth Proportional to 269,723.70, 372,216.86 and 148,864.98

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Solution

The fourth proportional to 269,723.70, 372,216.86 and 148,864.98 is: 205,432.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,723.70 : 372,216.86 = 148,864.98 : x
  2. Step 2: Convert to fraction form
    269,723.70/372,216.86 = 148,864.98/x
  3. Step 3: Cross multiply
    269,723.70x = 372,216.86 × 148,864.98
  4. Step 4: Simplify right side
    269,723.70x = 55,410,055,419.56
  5. Step 5: Solve for x
    x = 55,410,055,419.56/269,723.70
  6. Step 6: Final answer
    x = 205,432.65

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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.