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Finding the Fourth Proportional to 225,397.80, 311,049.48 and 122,033.16

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Solution

The fourth proportional to 225,397.80, 311,049.48 and 122,033.16 is: 168,406.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,397.80 : 311,049.48 = 122,033.16 : x
  2. Step 2: Convert to fraction form
    225,397.80/311,049.48 = 122,033.16/x
  3. Step 3: Cross multiply
    225,397.80x = 311,049.48 × 122,033.16
  4. Step 4: Simplify right side
    225,397.80x = 37,958,350,960.76
  5. Step 5: Solve for x
    x = 37,958,350,960.76/225,397.80
  6. Step 6: Final answer
    x = 168,406.04

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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.