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Finding the Fourth Proportional to 220,282.80, 303,986.52 and 119,680.08

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Solution

The fourth proportional to 220,282.80, 303,986.52 and 119,680.08 is: 165,156.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,282.80 : 303,986.52 = 119,680.08 : x
  2. Step 2: Convert to fraction form
    220,282.80/303,986.52 = 119,680.08/x
  3. Step 3: Cross multiply
    220,282.80x = 303,986.52 × 119,680.08
  4. Step 4: Simplify right side
    220,282.80x = 36,381,131,032.52
  5. Step 5: Solve for x
    x = 36,381,131,032.52/220,282.80
  6. Step 6: Final answer
    x = 165,156.48

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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.