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Finding the Fourth Proportional to 351,557.26, 527,228.16 and 126,890.26

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Solution

The fourth proportional to 351,557.26, 527,228.16 and 126,890.26 is: 190,296.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,557.26 : 527,228.16 = 126,890.26 : x
  2. Step 2: Convert to fraction form
    351,557.26/527,228.16 = 126,890.26/x
  3. Step 3: Cross multiply
    351,557.26x = 527,228.16 × 126,890.26
  4. Step 4: Simplify right side
    351,557.26x = 66,900,118,301.72
  5. Step 5: Solve for x
    x = 66,900,118,301.72/351,557.26
  6. Step 6: Final answer
    x = 190,296.51

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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.