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Finding the Fourth Proportional to 199,793.88, 275,532.78 and 156,192.12

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Solution

The fourth proportional to 199,793.88, 275,532.78 and 156,192.12 is: 215,402.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,793.88 : 275,532.78 = 156,192.12 : x
  2. Step 2: Convert to fraction form
    199,793.88/275,532.78 = 156,192.12/x
  3. Step 3: Cross multiply
    199,793.88x = 275,532.78 × 156,192.12
  4. Step 4: Simplify right side
    199,793.88x = 43,036,049,037.69
  5. Step 5: Solve for x
    x = 43,036,049,037.69/199,793.88
  6. Step 6: Final answer
    x = 215,402.24

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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.