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Finding the Fourth Proportional to 344,879.64, 517,168.64 and 173,996.21

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Solution

The fourth proportional to 344,879.64, 517,168.64 and 173,996.21 is: 260,918.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,879.64 : 517,168.64 = 173,996.21 : x
  2. Step 2: Convert to fraction form
    344,879.64/517,168.64 = 173,996.21/x
  3. Step 3: Cross multiply
    344,879.64x = 517,168.64 × 173,996.21
  4. Step 4: Simplify right side
    344,879.64x = 89,985,385,018.77
  5. Step 5: Solve for x
    x = 89,985,385,018.77/344,879.64
  6. Step 6: Final answer
    x = 260,918.23

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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.