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Finding the Fourth Proportional to 75,455.84, 113,144.88 and 51,799.52

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Solution

The fourth proportional to 75,455.84, 113,144.88 and 51,799.52 is: 77,672.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,455.84 : 113,144.88 = 51,799.52 : x
  2. Step 2: Convert to fraction form
    75,455.84/113,144.88 = 51,799.52/x
  3. Step 3: Cross multiply
    75,455.84x = 113,144.88 × 51,799.52
  4. Step 4: Simplify right side
    75,455.84x = 5,860,850,474.46
  5. Step 5: Solve for x
    x = 5,860,850,474.46/75,455.84
  6. Step 6: Final answer
    x = 77,672.59

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1.5x scale

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.