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Finding the Fourth Proportional to 203,051.80, 304,626.30 and 103,227.40

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Solution

The fourth proportional to 203,051.80, 304,626.30 and 103,227.40 is: 154,865.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,051.80 : 304,626.30 = 103,227.40 : x
  2. Step 2: Convert to fraction form
    203,051.80/304,626.30 = 103,227.40/x
  3. Step 3: Cross multiply
    203,051.80x = 304,626.30 × 103,227.40
  4. Step 4: Simplify right side
    203,051.80x = 31,445,780,920.62
  5. Step 5: Solve for x
    x = 31,445,780,920.62/203,051.80
  6. Step 6: Final answer
    x = 154,865.81

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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.