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Finding the Fourth Proportional to 60,768.80, 91,207.20 and 35,777.60

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Solution

The fourth proportional to 60,768.80, 91,207.20 and 35,777.60 is: 53,698.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,768.80 : 91,207.20 = 35,777.60 : x
  2. Step 2: Convert to fraction form
    60,768.80/91,207.20 = 35,777.60/x
  3. Step 3: Cross multiply
    60,768.80x = 91,207.20 × 35,777.60
  4. Step 4: Simplify right side
    60,768.80x = 3,263,174,718.72
  5. Step 5: Solve for x
    x = 3,263,174,718.72/60,768.80
  6. Step 6: Final answer
    x = 53,698.19

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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.