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Finding the Fourth Proportional to 66,880.36, 92,304.29 and 41,394.89

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Solution

The fourth proportional to 66,880.36, 92,304.29 and 41,394.89 is: 57,130.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,880.36 : 92,304.29 = 41,394.89 : x
  2. Step 2: Convert to fraction form
    66,880.36/92,304.29 = 41,394.89/x
  3. Step 3: Cross multiply
    66,880.36x = 92,304.29 × 41,394.89
  4. Step 4: Simplify right side
    66,880.36x = 3,820,926,161.84
  5. Step 5: Solve for x
    x = 3,820,926,161.84/66,880.36
  6. Step 6: Final answer
    x = 57,130.77

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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.