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Finding the Fourth Proportional to 220,191.30, 303,853.84 and 124,698.69

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Solution

The fourth proportional to 220,191.30, 303,853.84 and 124,698.69 is: 172,078.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,191.30 : 303,853.84 = 124,698.69 : x
  2. Step 2: Convert to fraction form
    220,191.30/303,853.84 = 124,698.69/x
  3. Step 3: Cross multiply
    220,191.30x = 303,853.84 × 124,698.69
  4. Step 4: Simplify right side
    220,191.30x = 37,890,175,487.72
  5. Step 5: Solve for x
    x = 37,890,175,487.72/220,191.30
  6. Step 6: Final answer
    x = 172,078.44

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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.