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Finding the Fourth Proportional to 75,620.44, 104,489.76 and 59,830.30

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Solution

The fourth proportional to 75,620.44, 104,489.76 and 59,830.30 is: 82,671.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,620.44 : 104,489.76 = 59,830.30 : x
  2. Step 2: Convert to fraction form
    75,620.44/104,489.76 = 59,830.30/x
  3. Step 3: Cross multiply
    75,620.44x = 104,489.76 × 59,830.30
  4. Step 4: Simplify right side
    75,620.44x = 6,251,653,687.73
  5. Step 5: Solve for x
    x = 6,251,653,687.73/75,620.44
  6. Step 6: Final answer
    x = 82,671.48

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1.5x scale

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.