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Finding the Fourth Proportional to 71,647.38, 98,847.81 and 49,252.50

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Solution

The fourth proportional to 71,647.38, 98,847.81 and 49,252.50 is: 67,950.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,647.38 : 98,847.81 = 49,252.50 : x
  2. Step 2: Convert to fraction form
    71,647.38/98,847.81 = 49,252.50/x
  3. Step 3: Cross multiply
    71,647.38x = 98,847.81 × 49,252.50
  4. Step 4: Simplify right side
    71,647.38x = 4,868,501,762.03
  5. Step 5: Solve for x
    x = 4,868,501,762.03/71,647.38
  6. Step 6: Final answer
    x = 67,950.87

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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.