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Finding the Fourth Proportional to 276,887.25, 415,365.71 and 108,385.92

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Solution

The fourth proportional to 276,887.25, 415,365.71 and 108,385.92 is: 162,592.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,887.25 : 415,365.71 = 108,385.92 : x
  2. Step 2: Convert to fraction form
    276,887.25/415,365.71 = 108,385.92/x
  3. Step 3: Cross multiply
    276,887.25x = 415,365.71 × 108,385.92
  4. Step 4: Simplify right side
    276,887.25x = 45,019,794,072.87
  5. Step 5: Solve for x
    x = 45,019,794,072.87/276,887.25
  6. Step 6: Final answer
    x = 162,592.51

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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.