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Finding the Fourth Proportional to 276,954.05, 415,264.93 and 127,006.52

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Solution

The fourth proportional to 276,954.05, 415,264.93 and 127,006.52 is: 190,433.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,954.05 : 415,264.93 = 127,006.52 : x
  2. Step 2: Convert to fraction form
    276,954.05/415,264.93 = 127,006.52/x
  3. Step 3: Cross multiply
    276,954.05x = 415,264.93 × 127,006.52
  4. Step 4: Simplify right side
    276,954.05x = 52,741,351,243.50
  5. Step 5: Solve for x
    x = 52,741,351,243.50/276,954.05
  6. Step 6: Final answer
    x = 190,433.58

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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.