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Finding the Fourth Proportional to 71,041.48, 98,040.50 and 40,836.56

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Solution

The fourth proportional to 71,041.48, 98,040.50 and 40,836.56 is: 56,356.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,041.48 : 98,040.50 = 40,836.56 : x
  2. Step 2: Convert to fraction form
    71,041.48/98,040.50 = 40,836.56/x
  3. Step 3: Cross multiply
    71,041.48x = 98,040.50 × 40,836.56
  4. Step 4: Simplify right side
    71,041.48x = 4,003,636,760.68
  5. Step 5: Solve for x
    x = 4,003,636,760.68/71,041.48
  6. Step 6: Final answer
    x = 56,356.33

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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.