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Finding the Fourth Proportional to 69,859.80, 104,602.73 and 60,933.20

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Solution

The fourth proportional to 69,859.80, 104,602.73 and 60,933.20 is: 91,236.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,859.80 : 104,602.73 = 60,933.20 : x
  2. Step 2: Convert to fraction form
    69,859.80/104,602.73 = 60,933.20/x
  3. Step 3: Cross multiply
    69,859.80x = 104,602.73 × 60,933.20
  4. Step 4: Simplify right side
    69,859.80x = 6,373,778,239.96
  5. Step 5: Solve for x
    x = 6,373,778,239.96/69,859.80
  6. Step 6: Final answer
    x = 91,236.71

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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.