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Finding the Fourth Proportional to 239,241.14, 358,917.30 and 81,470.96

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Solution

The fourth proportional to 239,241.14, 358,917.30 and 81,470.96 is: 122,225.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,241.14 : 358,917.30 = 81,470.96 : x
  2. Step 2: Convert to fraction form
    239,241.14/358,917.30 = 81,470.96/x
  3. Step 3: Cross multiply
    239,241.14x = 358,917.30 × 81,470.96
  4. Step 4: Simplify right side
    239,241.14x = 29,241,336,991.61
  5. Step 5: Solve for x
    x = 29,241,336,991.61/239,241.14
  6. Step 6: Final answer
    x = 122,225.37

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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.