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Finding the Fourth Proportional to 344,708.80, 475,673.17 and 215,704.96

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Solution

The fourth proportional to 344,708.80, 475,673.17 and 215,704.96 is: 297,657.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,708.80 : 475,673.17 = 215,704.96 : x
  2. Step 2: Convert to fraction form
    344,708.80/475,673.17 = 215,704.96/x
  3. Step 3: Cross multiply
    344,708.80x = 475,673.17 × 215,704.96
  4. Step 4: Simplify right side
    344,708.80x = 102,605,058,651.03
  5. Step 5: Solve for x
    x = 102,605,058,651.03/344,708.80
  6. Step 6: Final answer
    x = 297,657.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.