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Finding the Fourth Proportional to 66,881.36, 92,305.67 and 41,395.89

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Solution

The fourth proportional to 66,881.36, 92,305.67 and 41,395.89 is: 57,132.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,881.36 : 92,305.67 = 41,395.89 : x
  2. Step 2: Convert to fraction form
    66,881.36/92,305.67 = 41,395.89/x
  3. Step 3: Cross multiply
    66,881.36x = 92,305.67 × 41,395.89
  4. Step 4: Simplify right side
    66,881.36x = 3,821,075,361.70
  5. Step 5: Solve for x
    x = 3,821,075,361.70/66,881.36
  6. Step 6: Final answer
    x = 57,132.14

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.