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Finding the Fourth Proportional to 75,241.66, 112,879.83 and 25,320.45

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Solution

The fourth proportional to 75,241.66, 112,879.83 and 25,320.45 is: 37,986.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,241.66 : 112,879.83 = 25,320.45 : x
  2. Step 2: Convert to fraction form
    75,241.66/112,879.83 = 25,320.45/x
  3. Step 3: Cross multiply
    75,241.66x = 112,879.83 × 25,320.45
  4. Step 4: Simplify right side
    75,241.66x = 2,858,167,832.40
  5. Step 5: Solve for x
    x = 2,858,167,832.40/75,241.66
  6. Step 6: Final answer
    x = 37,986.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.