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Finding the Fourth Proportional to 168,065.27, 251,945.31 and 83,851.19

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Solution

The fourth proportional to 168,065.27, 251,945.31 and 83,851.19 is: 125,700.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,065.27 : 251,945.31 = 83,851.19 : x
  2. Step 2: Convert to fraction form
    168,065.27/251,945.31 = 83,851.19/x
  3. Step 3: Cross multiply
    168,065.27x = 251,945.31 × 83,851.19
  4. Step 4: Simplify right side
    168,065.27x = 21,125,912,798.69
  5. Step 5: Solve for x
    x = 21,125,912,798.69/168,065.27
  6. Step 6: Final answer
    x = 125,700.65

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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.