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Finding the Fourth Proportional to 351,297.28, 527,029.76 and 114,640.39

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Solution

The fourth proportional to 351,297.28, 527,029.76 and 114,640.39 is: 171,987.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,297.28 : 527,029.76 = 114,640.39 : x
  2. Step 2: Convert to fraction form
    351,297.28/527,029.76 = 114,640.39/x
  3. Step 3: Cross multiply
    351,297.28x = 527,029.76 × 114,640.39
  4. Step 4: Simplify right side
    351,297.28x = 60,418,897,228.01
  5. Step 5: Solve for x
    x = 60,418,897,228.01/351,297.28
  6. Step 6: Final answer
    x = 171,987.94

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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.