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Finding the Fourth Proportional to 71,356.89, 98,472.63 and 39,525.11

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Solution

The fourth proportional to 71,356.89, 98,472.63 and 39,525.11 is: 54,544.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,356.89 : 98,472.63 = 39,525.11 : x
  2. Step 2: Convert to fraction form
    71,356.89/98,472.63 = 39,525.11/x
  3. Step 3: Cross multiply
    71,356.89x = 98,472.63 × 39,525.11
  4. Step 4: Simplify right side
    71,356.89x = 3,892,141,188.60
  5. Step 5: Solve for x
    x = 3,892,141,188.60/71,356.89
  6. Step 6: Final answer
    x = 54,544.71

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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.