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Finding the Fourth Proportional to 66,361.65, 99,605.01 and 44,190.54

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Solution

The fourth proportional to 66,361.65, 99,605.01 and 44,190.54 is: 66,327.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,361.65 : 99,605.01 = 44,190.54 : x
  2. Step 2: Convert to fraction form
    66,361.65/99,605.01 = 44,190.54/x
  3. Step 3: Cross multiply
    66,361.65x = 99,605.01 × 44,190.54
  4. Step 4: Simplify right side
    66,361.65x = 4,401,599,178.61
  5. Step 5: Solve for x
    x = 4,401,599,178.61/66,361.65
  6. Step 6: Final answer
    x = 66,327.45

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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.