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Finding the Fourth Proportional to 220,079.84, 330,168.48 and 79,849.52

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Solution

The fourth proportional to 220,079.84, 330,168.48 and 79,849.52 is: 119,791.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,079.84 : 330,168.48 = 79,849.52 : x
  2. Step 2: Convert to fraction form
    220,079.84/330,168.48 = 79,849.52/x
  3. Step 3: Cross multiply
    220,079.84x = 330,168.48 × 79,849.52
  4. Step 4: Simplify right side
    220,079.84x = 26,363,794,647.13
  5. Step 5: Solve for x
    x = 26,363,794,647.13/220,079.84
  6. Step 6: Final answer
    x = 119,791.96

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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.