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Finding the Fourth Proportional to 523,676.75, 785,515.73 and 168,743.66

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Solution

The fourth proportional to 523,676.75, 785,515.73 and 168,743.66 is: 253,115.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    523,676.75 : 785,515.73 = 168,743.66 : x
  2. Step 2: Convert to fraction form
    523,676.75/785,515.73 = 168,743.66/x
  3. Step 3: Cross multiply
    523,676.75x = 785,515.73 × 168,743.66
  4. Step 4: Simplify right side
    523,676.75x = 132,550,794,496.48
  5. Step 5: Solve for x
    x = 132,550,794,496.48/523,676.75
  6. Step 6: Final answer
    x = 253,115.68

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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.