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Finding the Fourth Proportional to 67,151.20, 100,804.40 and 36,047.20

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Solution

The fourth proportional to 67,151.20, 100,804.40 and 36,047.20 is: 54,112.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,151.20 : 100,804.40 = 36,047.20 : x
  2. Step 2: Convert to fraction form
    67,151.20/100,804.40 = 36,047.20/x
  3. Step 3: Cross multiply
    67,151.20x = 100,804.40 × 36,047.20
  4. Step 4: Simplify right side
    67,151.20x = 3,633,716,367.68
  5. Step 5: Solve for x
    x = 3,633,716,367.68/67,151.20
  6. Step 6: Final answer
    x = 54,112.46

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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.