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Finding the Fourth Proportional to 221,493.43, 332,272.75 and 71,683.93

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Solution

The fourth proportional to 221,493.43, 332,272.75 and 71,683.93 is: 107,536.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,493.43 : 332,272.75 = 71,683.93 : x
  2. Step 2: Convert to fraction form
    221,493.43/332,272.75 = 71,683.93/x
  3. Step 3: Cross multiply
    221,493.43x = 332,272.75 × 71,683.93
  4. Step 4: Simplify right side
    221,493.43x = 23,818,615,542.02
  5. Step 5: Solve for x
    x = 23,818,615,542.02/221,493.43
  6. Step 6: Final answer
    x = 107,536.44

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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.