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Finding the Fourth Proportional to 71,231.00, 98,299.44 and 38,964.98

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Solution

The fourth proportional to 71,231.00, 98,299.44 and 38,964.98 is: 53,772.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,231.00 : 98,299.44 = 38,964.98 : x
  2. Step 2: Convert to fraction form
    71,231.00/98,299.44 = 38,964.98/x
  3. Step 3: Cross multiply
    71,231.00x = 98,299.44 × 38,964.98
  4. Step 4: Simplify right side
    71,231.00x = 3,830,235,959.36
  5. Step 5: Solve for x
    x = 3,830,235,959.36/71,231.00
  6. Step 6: Final answer
    x = 53,772.04

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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.