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Finding the Fourth Proportional to 75,768.94, 113,653.41 and 75,659.59

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Solution

The fourth proportional to 75,768.94, 113,653.41 and 75,659.59 is: 113,489.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,768.94 : 113,653.41 = 75,659.59 : x
  2. Step 2: Convert to fraction form
    75,768.94/113,653.41 = 75,659.59/x
  3. Step 3: Cross multiply
    75,768.94x = 113,653.41 × 75,659.59
  4. Step 4: Simplify right side
    75,768.94x = 8,598,970,402.70
  5. Step 5: Solve for x
    x = 8,598,970,402.70/75,768.94
  6. Step 6: Final answer
    x = 113,489.39

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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.