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Finding the Fourth Proportional to 54,873.78, 75,726.18 and 29,723.28

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Solution

The fourth proportional to 54,873.78, 75,726.18 and 29,723.28 is: 41,018.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,873.78 : 75,726.18 = 29,723.28 : x
  2. Step 2: Convert to fraction form
    54,873.78/75,726.18 = 29,723.28/x
  3. Step 3: Cross multiply
    54,873.78x = 75,726.18 × 29,723.28
  4. Step 4: Simplify right side
    54,873.78x = 2,250,830,451.47
  5. Step 5: Solve for x
    x = 2,250,830,451.47/54,873.78
  6. Step 6: Final answer
    x = 41,018.32

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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.