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Finding the Fourth Proportional to 207,350.16, 311,010.42 and 80,966.73

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Solution

The fourth proportional to 207,350.16, 311,010.42 and 80,966.73 is: 121,444.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,350.16 : 311,010.42 = 80,966.73 : x
  2. Step 2: Convert to fraction form
    207,350.16/311,010.42 = 80,966.73/x
  3. Step 3: Cross multiply
    207,350.16x = 311,010.42 × 80,966.73
  4. Step 4: Simplify right side
    207,350.16x = 25,181,496,703.33
  5. Step 5: Solve for x
    x = 25,181,496,703.33/207,350.16
  6. Step 6: Final answer
    x = 121,444.31

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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.