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Finding the Fourth Proportional to 101,777.82, 140,449.59 and 57,062.94

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Solution

The fourth proportional to 101,777.82, 140,449.59 and 57,062.94 is: 78,744.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,777.82 : 140,449.59 = 57,062.94 : x
  2. Step 2: Convert to fraction form
    101,777.82/140,449.59 = 57,062.94/x
  3. Step 3: Cross multiply
    101,777.82x = 140,449.59 × 57,062.94
  4. Step 4: Simplify right side
    101,777.82x = 8,014,466,527.19
  5. Step 5: Solve for x
    x = 8,014,466,527.19/101,777.82
  6. Step 6: Final answer
    x = 78,744.73

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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.