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Finding the Fourth Proportional to 240,648.96, 332,148.96 and 140,105.28

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Solution

The fourth proportional to 240,648.96, 332,148.96 and 140,105.28 is: 193,376.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,648.96 : 332,148.96 = 140,105.28 : x
  2. Step 2: Convert to fraction form
    240,648.96/332,148.96 = 140,105.28/x
  3. Step 3: Cross multiply
    240,648.96x = 332,148.96 × 140,105.28
  4. Step 4: Simplify right side
    240,648.96x = 46,535,823,042.51
  5. Step 5: Solve for x
    x = 46,535,823,042.51/240,648.96
  6. Step 6: Final answer
    x = 193,376.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.