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Finding the Fourth Proportional to 67,334.46, 100,890.06 and 40,959.42

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Solution

The fourth proportional to 67,334.46, 100,890.06 and 40,959.42 is: 61,371.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,334.46 : 100,890.06 = 40,959.42 : x
  2. Step 2: Convert to fraction form
    67,334.46/100,890.06 = 40,959.42/x
  3. Step 3: Cross multiply
    67,334.46x = 100,890.06 × 40,959.42
  4. Step 4: Simplify right side
    67,334.46x = 4,132,398,341.37
  5. Step 5: Solve for x
    x = 4,132,398,341.37/67,334.46
  6. Step 6: Final answer
    x = 61,371.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.