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Finding the Fourth Proportional to 276,540.64, 415,058.20 and 141,696.70

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Solution

The fourth proportional to 276,540.64, 415,058.20 and 141,696.70 is: 212,671.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,540.64 : 415,058.20 = 141,696.70 : x
  2. Step 2: Convert to fraction form
    276,540.64/415,058.20 = 141,696.70/x
  3. Step 3: Cross multiply
    276,540.64x = 415,058.20 × 141,696.70
  4. Step 4: Simplify right side
    276,540.64x = 58,812,377,247.94
  5. Step 5: Solve for x
    x = 58,812,377,247.94/276,540.64
  6. Step 6: Final answer
    x = 212,671.73

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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.