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Finding the Fourth Proportional to 60,727.80, 91,091.70 and 54,330.83

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Solution

The fourth proportional to 60,727.80, 91,091.70 and 54,330.83 is: 81,496.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,727.80 : 91,091.70 = 54,330.83 : x
  2. Step 2: Convert to fraction form
    60,727.80/91,091.70 = 54,330.83/x
  3. Step 3: Cross multiply
    60,727.80x = 91,091.70 × 54,330.83
  4. Step 4: Simplify right side
    60,727.80x = 4,949,087,211.65
  5. Step 5: Solve for x
    x = 4,949,087,211.65/60,727.80
  6. Step 6: Final answer
    x = 81,496.24

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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.