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Finding the Fourth Proportional to 189,053.01, 260,891.49 and 104,169.45

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Solution

The fourth proportional to 189,053.01, 260,891.49 and 104,169.45 is: 143,752.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,053.01 : 260,891.49 = 104,169.45 : x
  2. Step 2: Convert to fraction form
    189,053.01/260,891.49 = 104,169.45/x
  3. Step 3: Cross multiply
    189,053.01x = 260,891.49 × 104,169.45
  4. Step 4: Simplify right side
    189,053.01x = 27,176,923,022.98
  5. Step 5: Solve for x
    x = 27,176,923,022.98/189,053.01
  6. Step 6: Final answer
    x = 143,752.92

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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.