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Finding the Fourth Proportional to 75,255.88, 112,860.78 and 52,031.56

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Solution

The fourth proportional to 75,255.88, 112,860.78 and 52,031.56 is: 78,031.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,255.88 : 112,860.78 = 52,031.56 : x
  2. Step 2: Convert to fraction form
    75,255.88/112,860.78 = 52,031.56/x
  3. Step 3: Cross multiply
    75,255.88x = 112,860.78 × 52,031.56
  4. Step 4: Simplify right side
    75,255.88x = 5,872,322,446.22
  5. Step 5: Solve for x
    x = 5,872,322,446.22/75,255.88
  6. Step 6: Final answer
    x = 78,031.41

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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.