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Finding the Fourth Proportional to 71,238.98, 98,321.90 and 41,041.77

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Solution

The fourth proportional to 71,238.98, 98,321.90 and 41,041.77 is: 56,644.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,238.98 : 98,321.90 = 41,041.77 : x
  2. Step 2: Convert to fraction form
    71,238.98/98,321.90 = 41,041.77/x
  3. Step 3: Cross multiply
    71,238.98x = 98,321.90 × 41,041.77
  4. Step 4: Simplify right side
    71,238.98x = 4,035,304,600.55
  5. Step 5: Solve for x
    x = 4,035,304,600.55/71,238.98
  6. Step 6: Final answer
    x = 56,644.62

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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.