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Finding the Fourth Proportional to 240,086.28, 360,355.44 and 121,842.48

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Solution

The fourth proportional to 240,086.28, 360,355.44 and 121,842.48 is: 182,878.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,086.28 : 360,355.44 = 121,842.48 : x
  2. Step 2: Convert to fraction form
    240,086.28/360,355.44 = 121,842.48/x
  3. Step 3: Cross multiply
    240,086.28x = 360,355.44 × 121,842.48
  4. Step 4: Simplify right side
    240,086.28x = 43,906,600,491.09
  5. Step 5: Solve for x
    x = 43,906,600,491.09/240,086.28
  6. Step 6: Final answer
    x = 182,878.42

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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.