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Finding the Fourth Proportional to 73,663.50, 110,515.65 and 29,321.39

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Solution

The fourth proportional to 73,663.50, 110,515.65 and 29,321.39 is: 43,990.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,663.50 : 110,515.65 = 29,321.39 : x
  2. Step 2: Convert to fraction form
    73,663.50/110,515.65 = 29,321.39/x
  3. Step 3: Cross multiply
    73,663.50x = 110,515.65 × 29,321.39
  4. Step 4: Simplify right side
    73,663.50x = 3,240,472,440.48
  5. Step 5: Solve for x
    x = 3,240,472,440.48/73,663.50
  6. Step 6: Final answer
    x = 43,990.21

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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.