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Finding the Fourth Proportional to 150,099.93, 207,163.31 and 86,426.01

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Solution

The fourth proportional to 150,099.93, 207,163.31 and 86,426.01 is: 119,282.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,099.93 : 207,163.31 = 86,426.01 : x
  2. Step 2: Convert to fraction form
    150,099.93/207,163.31 = 86,426.01/x
  3. Step 3: Cross multiply
    150,099.93x = 207,163.31 × 86,426.01
  4. Step 4: Simplify right side
    150,099.93x = 17,904,297,869.56
  5. Step 5: Solve for x
    x = 17,904,297,869.56/150,099.93
  6. Step 6: Final answer
    x = 119,282.52

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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.