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Finding the Fourth Proportional to 101,604.22, 140,218.86 and 61,317.34

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Solution

The fourth proportional to 101,604.22, 140,218.86 and 61,317.34 is: 84,620.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,604.22 : 140,218.86 = 61,317.34 : x
  2. Step 2: Convert to fraction form
    101,604.22/140,218.86 = 61,317.34/x
  3. Step 3: Cross multiply
    101,604.22x = 140,218.86 × 61,317.34
  4. Step 4: Simplify right side
    101,604.22x = 8,597,847,513.03
  5. Step 5: Solve for x
    x = 8,597,847,513.03/101,604.22
  6. Step 6: Final answer
    x = 84,620.97

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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.