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Finding the Fourth Proportional to 181,205.78, 250,072.28 and 100,633.66

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Solution

The fourth proportional to 181,205.78, 250,072.28 and 100,633.66 is: 138,879.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,205.78 : 250,072.28 = 100,633.66 : x
  2. Step 2: Convert to fraction form
    181,205.78/250,072.28 = 100,633.66/x
  3. Step 3: Cross multiply
    181,205.78x = 250,072.28 × 100,633.66
  4. Step 4: Simplify right side
    181,205.78x = 25,165,688,800.94
  5. Step 5: Solve for x
    x = 25,165,688,800.94/181,205.78
  6. Step 6: Final answer
    x = 138,879.06

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1.5x scale

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.