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Finding the Fourth Proportional to 351,588.33, 527,169.87 and 138,100.68

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Solution

The fourth proportional to 351,588.33, 527,169.87 and 138,100.68 is: 207,067.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,588.33 : 527,169.87 = 138,100.68 : x
  2. Step 2: Convert to fraction form
    351,588.33/527,169.87 = 138,100.68/x
  3. Step 3: Cross multiply
    351,588.33x = 527,169.87 × 138,100.68
  4. Step 4: Simplify right side
    351,588.33x = 72,802,517,522.51
  5. Step 5: Solve for x
    x = 72,802,517,522.51/351,588.33
  6. Step 6: Final answer
    x = 207,067.50

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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.