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Finding the Fourth Proportional to 100,366.49, 150,254.19 and 67,003.81

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Solution

The fourth proportional to 100,366.49, 150,254.19 and 67,003.81 is: 100,308.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,366.49 : 150,254.19 = 67,003.81 : x
  2. Step 2: Convert to fraction form
    100,366.49/150,254.19 = 67,003.81/x
  3. Step 3: Cross multiply
    100,366.49x = 150,254.19 × 67,003.81
  4. Step 4: Simplify right side
    100,366.49x = 10,067,602,822.83
  5. Step 5: Solve for x
    x = 10,067,602,822.83/100,366.49
  6. Step 6: Final answer
    x = 100,308.41

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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.