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Finding the Fourth Proportional to 215,358.48, 322,838.09 and 95,351.48

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Solution

The fourth proportional to 215,358.48, 322,838.09 and 95,351.48 is: 142,938.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,358.48 : 322,838.09 = 95,351.48 : x
  2. Step 2: Convert to fraction form
    215,358.48/322,838.09 = 95,351.48/x
  3. Step 3: Cross multiply
    215,358.48x = 322,838.09 × 95,351.48
  4. Step 4: Simplify right side
    215,358.48x = 30,783,089,159.14
  5. Step 5: Solve for x
    x = 30,783,089,159.14/215,358.48
  6. Step 6: Final answer
    x = 142,938.83

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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.