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Finding the Fourth Proportional to 223,429.80, 335,144.70 and 143,713.65

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Solution

The fourth proportional to 223,429.80, 335,144.70 and 143,713.65 is: 215,570.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,429.80 : 335,144.70 = 143,713.65 : x
  2. Step 2: Convert to fraction form
    223,429.80/335,144.70 = 143,713.65/x
  3. Step 3: Cross multiply
    223,429.80x = 335,144.70 × 143,713.65
  4. Step 4: Simplify right side
    223,429.80x = 48,164,868,115.16
  5. Step 5: Solve for x
    x = 48,164,868,115.16/223,429.80
  6. Step 6: Final answer
    x = 215,570.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.