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Finding the Fourth Proportional to 217,446.44, 300,047.10 and 120,648.74

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Solution

The fourth proportional to 217,446.44, 300,047.10 and 120,648.74 is: 166,479.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,446.44 : 300,047.10 = 120,648.74 : x
  2. Step 2: Convert to fraction form
    217,446.44/300,047.10 = 120,648.74/x
  3. Step 3: Cross multiply
    217,446.44x = 300,047.10 × 120,648.74
  4. Step 4: Simplify right side
    217,446.44x = 36,200,304,555.65
  5. Step 5: Solve for x
    x = 36,200,304,555.65/217,446.44
  6. Step 6: Final answer
    x = 166,479.18

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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.