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Finding the Fourth Proportional to 66,559.22, 99,811.11 and 27,089.54

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Solution

The fourth proportional to 66,559.22, 99,811.11 and 27,089.54 is: 40,623.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,559.22 : 99,811.11 = 27,089.54 : x
  2. Step 2: Convert to fraction form
    66,559.22/99,811.11 = 27,089.54/x
  3. Step 3: Cross multiply
    66,559.22x = 99,811.11 × 27,089.54
  4. Step 4: Simplify right side
    66,559.22x = 2,703,837,056.79
  5. Step 5: Solve for x
    x = 2,703,837,056.79/66,559.22
  6. Step 6: Final answer
    x = 40,623.03

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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.