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Finding the Fourth Proportional to 220,114.80, 330,172.20 and 53,902.80

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Solution

The fourth proportional to 220,114.80, 330,172.20 and 53,902.80 is: 80,854.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,114.80 : 330,172.20 = 53,902.80 : x
  2. Step 2: Convert to fraction form
    220,114.80/330,172.20 = 53,902.80/x
  3. Step 3: Cross multiply
    220,114.80x = 330,172.20 × 53,902.80
  4. Step 4: Simplify right side
    220,114.80x = 17,797,206,062.16
  5. Step 5: Solve for x
    x = 17,797,206,062.16/220,114.80
  6. Step 6: Final answer
    x = 80,854.20

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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.