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Finding the Fourth Proportional to 181,937.76, 251,067.78 and 101,361.12

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Solution

The fourth proportional to 181,937.76, 251,067.78 and 101,361.12 is: 139,874.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,937.76 : 251,067.78 = 101,361.12 : x
  2. Step 2: Convert to fraction form
    181,937.76/251,067.78 = 101,361.12/x
  3. Step 3: Cross multiply
    181,937.76x = 251,067.78 × 101,361.12
  4. Step 4: Simplify right side
    181,937.76x = 25,448,511,376.71
  5. Step 5: Solve for x
    x = 25,448,511,376.71/181,937.76
  6. Step 6: Final answer
    x = 139,874.82

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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.