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Finding the Fourth Proportional to 239,662.32, 330,853.85 and 149,047.48

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Solution

The fourth proportional to 239,662.32, 330,853.85 and 149,047.48 is: 205,760.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,662.32 : 330,853.85 = 149,047.48 : x
  2. Step 2: Convert to fraction form
    239,662.32/330,853.85 = 149,047.48/x
  3. Step 3: Cross multiply
    239,662.32x = 330,853.85 × 149,047.48
  4. Step 4: Simplify right side
    239,662.32x = 49,312,931,463.15
  5. Step 5: Solve for x
    x = 49,312,931,463.15/239,662.32
  6. Step 6: Final answer
    x = 205,760.05

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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.