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Finding the Fourth Proportional to 101,771.05, 140,352.15 and 63,534.12

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Solution

The fourth proportional to 101,771.05, 140,352.15 and 63,534.12 is: 87,619.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,771.05 : 140,352.15 = 63,534.12 : x
  2. Step 2: Convert to fraction form
    101,771.05/140,352.15 = 63,534.12/x
  3. Step 3: Cross multiply
    101,771.05x = 140,352.15 × 63,534.12
  4. Step 4: Simplify right side
    101,771.05x = 8,917,150,340.36
  5. Step 5: Solve for x
    x = 8,917,150,340.36/101,771.05
  6. Step 6: Final answer
    x = 87,619.71

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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.