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Finding the Fourth Proportional to 126,775.97, 174,945.43 and 69,414.25

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Solution

The fourth proportional to 126,775.97, 174,945.43 and 69,414.25 is: 95,788.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,775.97 : 174,945.43 = 69,414.25 : x
  2. Step 2: Convert to fraction form
    126,775.97/174,945.43 = 69,414.25/x
  3. Step 3: Cross multiply
    126,775.97x = 174,945.43 × 69,414.25
  4. Step 4: Simplify right side
    126,775.97x = 12,143,705,814.38
  5. Step 5: Solve for x
    x = 12,143,705,814.38/126,775.97
  6. Step 6: Final answer
    x = 95,788.70

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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.