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Finding the Fourth Proportional to 203,466.20, 305,199.30 and 170,223.80

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Solution

The fourth proportional to 203,466.20, 305,199.30 and 170,223.80 is: 255,335.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,466.20 : 305,199.30 = 170,223.80 : x
  2. Step 2: Convert to fraction form
    203,466.20/305,199.30 = 170,223.80/x
  3. Step 3: Cross multiply
    203,466.20x = 305,199.30 × 170,223.80
  4. Step 4: Simplify right side
    203,466.20x = 51,952,184,603.34
  5. Step 5: Solve for x
    x = 51,952,184,603.34/203,466.20
  6. Step 6: Final answer
    x = 255,335.70

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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.