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Finding the Fourth Proportional to 115,080.52, 172,628.22 and 36,198.28

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Solution

The fourth proportional to 115,080.52, 172,628.22 and 36,198.28 is: 54,299.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,080.52 : 172,628.22 = 36,198.28 : x
  2. Step 2: Convert to fraction form
    115,080.52/172,628.22 = 36,198.28/x
  3. Step 3: Cross multiply
    115,080.52x = 172,628.22 × 36,198.28
  4. Step 4: Simplify right side
    115,080.52x = 6,248,844,643.46
  5. Step 5: Solve for x
    x = 6,248,844,643.46/115,080.52
  6. Step 6: Final answer
    x = 54,299.76

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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.