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Finding the Fourth Proportional to 173,121.30, 259,694.10 and 98,277.30

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Solution

The fourth proportional to 173,121.30, 259,694.10 and 98,277.30 is: 147,422.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,121.30 : 259,694.10 = 98,277.30 : x
  2. Step 2: Convert to fraction form
    173,121.30/259,694.10 = 98,277.30/x
  3. Step 3: Cross multiply
    173,121.30x = 259,694.10 × 98,277.30
  4. Step 4: Simplify right side
    173,121.30x = 25,522,034,973.93
  5. Step 5: Solve for x
    x = 25,522,034,973.93/173,121.30
  6. Step 6: Final answer
    x = 147,422.85

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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.