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Finding the Fourth Proportional to 71,596.12, 98,801.22 and 39,763.93

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Solution

The fourth proportional to 71,596.12, 98,801.22 and 39,763.93 is: 54,873.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,596.12 : 98,801.22 = 39,763.93 : x
  2. Step 2: Convert to fraction form
    71,596.12/98,801.22 = 39,763.93/x
  3. Step 3: Cross multiply
    71,596.12x = 98,801.22 × 39,763.93
  4. Step 4: Simplify right side
    71,596.12x = 3,928,724,795.99
  5. Step 5: Solve for x
    x = 3,928,724,795.99/71,596.12
  6. Step 6: Final answer
    x = 54,873.43

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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.