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Finding the Fourth Proportional to 225,585.98, 338,379.21 and 67,814.42

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Solution

The fourth proportional to 225,585.98, 338,379.21 and 67,814.42 is: 101,721.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,585.98 : 338,379.21 = 67,814.42 : x
  2. Step 2: Convert to fraction form
    225,585.98/338,379.21 = 67,814.42/x
  3. Step 3: Cross multiply
    225,585.98x = 338,379.21 × 67,814.42
  4. Step 4: Simplify right side
    225,585.98x = 22,946,988,174.31
  5. Step 5: Solve for x
    x = 22,946,988,174.31/225,585.98
  6. Step 6: Final answer
    x = 101,721.70

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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.