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Finding the Fourth Proportional to 242,589.20, 363,883.80 and 124,491.20

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Solution

The fourth proportional to 242,589.20, 363,883.80 and 124,491.20 is: 186,736.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,589.20 : 363,883.80 = 124,491.20 : x
  2. Step 2: Convert to fraction form
    242,589.20/363,883.80 = 124,491.20/x
  3. Step 3: Cross multiply
    242,589.20x = 363,883.80 × 124,491.20
  4. Step 4: Simplify right side
    242,589.20x = 45,300,330,922.56
  5. Step 5: Solve for x
    x = 45,300,330,922.56/242,589.20
  6. Step 6: Final answer
    x = 186,736.80

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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.