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Finding the Fourth Proportional to 75,475.66, 104,158.79 and 41,486.78

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Solution

The fourth proportional to 75,475.66, 104,158.79 and 41,486.78 is: 57,253.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,475.66 : 104,158.79 = 41,486.78 : x
  2. Step 2: Convert to fraction form
    75,475.66/104,158.79 = 41,486.78/x
  3. Step 3: Cross multiply
    75,475.66x = 104,158.79 × 41,486.78
  4. Step 4: Simplify right side
    75,475.66x = 4,321,212,388.72
  5. Step 5: Solve for x
    x = 4,321,212,388.72/75,475.66
  6. Step 6: Final answer
    x = 57,253.06

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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.