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Finding the Fourth Proportional to 240,568.20, 360,938.70 and 100,369.80

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Solution

The fourth proportional to 240,568.20, 360,938.70 and 100,369.80 is: 150,590.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,568.20 : 360,938.70 = 100,369.80 : x
  2. Step 2: Convert to fraction form
    240,568.20/360,938.70 = 100,369.80/x
  3. Step 3: Cross multiply
    240,568.20x = 360,938.70 × 100,369.80
  4. Step 4: Simplify right side
    240,568.20x = 36,227,345,131.26
  5. Step 5: Solve for x
    x = 36,227,345,131.26/240,568.20
  6. Step 6: Final answer
    x = 150,590.75

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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.