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Finding the Fourth Proportional to 218,480.99, 327,739.28 and 60,709.46

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Solution

The fourth proportional to 218,480.99, 327,739.28 and 60,709.46 is: 91,069.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,480.99 : 327,739.28 = 60,709.46 : x
  2. Step 2: Convert to fraction form
    218,480.99/327,739.28 = 60,709.46/x
  3. Step 3: Cross multiply
    218,480.99x = 327,739.28 × 60,709.46
  4. Step 4: Simplify right side
    218,480.99x = 19,896,874,709.59
  5. Step 5: Solve for x
    x = 19,896,874,709.59/218,480.99
  6. Step 6: Final answer
    x = 91,069.13

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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.