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Finding the Fourth Proportional to 267,163.92, 400,772.61 and 98,728.47

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Solution

The fourth proportional to 267,163.92, 400,772.61 and 98,728.47 is: 148,102.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,163.92 : 400,772.61 = 98,728.47 : x
  2. Step 2: Convert to fraction form
    267,163.92/400,772.61 = 98,728.47/x
  3. Step 3: Cross multiply
    267,163.92x = 400,772.61 × 98,728.47
  4. Step 4: Simplify right side
    267,163.92x = 39,567,666,603.21
  5. Step 5: Solve for x
    x = 39,567,666,603.21/267,163.92
  6. Step 6: Final answer
    x = 148,102.58

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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.