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Finding the Fourth Proportional to 75,261.88, 112,869.78 and 52,037.56

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Solution

The fourth proportional to 75,261.88, 112,869.78 and 52,037.56 is: 78,040.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,261.88 : 112,869.78 = 52,037.56 : x
  2. Step 2: Convert to fraction form
    75,261.88/112,869.78 = 52,037.56/x
  3. Step 3: Cross multiply
    75,261.88x = 112,869.78 × 52,037.56
  4. Step 4: Simplify right side
    75,261.88x = 5,873,467,948.94
  5. Step 5: Solve for x
    x = 5,873,467,948.94/75,261.88
  6. Step 6: Final answer
    x = 78,040.41

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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.