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Finding the Fourth Proportional to 203,472.10, 305,208.15 and 173,404.90

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Solution

The fourth proportional to 203,472.10, 305,208.15 and 173,404.90 is: 260,107.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,472.10 : 305,208.15 = 173,404.90 : x
  2. Step 2: Convert to fraction form
    203,472.10/305,208.15 = 173,404.90/x
  3. Step 3: Cross multiply
    203,472.10x = 305,208.15 × 173,404.90
  4. Step 4: Simplify right side
    203,472.10x = 52,924,588,729.94
  5. Step 5: Solve for x
    x = 52,924,588,729.94/203,472.10
  6. Step 6: Final answer
    x = 260,107.35

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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.