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Finding the Fourth Proportional to 75,505.52, 113,257.56 and 20,101.52

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Solution

The fourth proportional to 75,505.52, 113,257.56 and 20,101.52 is: 30,152.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,505.52 : 113,257.56 = 20,101.52 : x
  2. Step 2: Convert to fraction form
    75,505.52/113,257.56 = 20,101.52/x
  3. Step 3: Cross multiply
    75,505.52x = 113,257.56 × 20,101.52
  4. Step 4: Simplify right side
    75,505.52x = 2,276,649,107.49
  5. Step 5: Solve for x
    x = 2,276,649,107.49/75,505.52
  6. Step 6: Final answer
    x = 30,152.09

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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.