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Finding the Fourth Proportional to 133,622.80, 200,434.20 and 112,886.80

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Solution

The fourth proportional to 133,622.80, 200,434.20 and 112,886.80 is: 169,330.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,622.80 : 200,434.20 = 112,886.80 : x
  2. Step 2: Convert to fraction form
    133,622.80/200,434.20 = 112,886.80/x
  3. Step 3: Cross multiply
    133,622.80x = 200,434.20 × 112,886.80
  4. Step 4: Simplify right side
    133,622.80x = 22,626,375,448.56
  5. Step 5: Solve for x
    x = 22,626,375,448.56/133,622.80
  6. Step 6: Final answer
    x = 169,330.20

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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.