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Finding the Fourth Proportional to 200,626.32, 300,845.16 and 74,179.20

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Solution

The fourth proportional to 200,626.32, 300,845.16 and 74,179.20 is: 111,233.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,626.32 : 300,845.16 = 74,179.20 : x
  2. Step 2: Convert to fraction form
    200,626.32/300,845.16 = 74,179.20/x
  3. Step 3: Cross multiply
    200,626.32x = 300,845.16 × 74,179.20
  4. Step 4: Simplify right side
    200,626.32x = 22,316,453,292.67
  5. Step 5: Solve for x
    x = 22,316,453,292.67/200,626.32
  6. Step 6: Final answer
    x = 111,233.93

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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.