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Finding the Fourth Proportional to 66,310.88, 91,528.34 and 43,344.04

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Solution

The fourth proportional to 66,310.88, 91,528.34 and 43,344.04 is: 59,827.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,310.88 : 91,528.34 = 43,344.04 : x
  2. Step 2: Convert to fraction form
    66,310.88/91,528.34 = 43,344.04/x
  3. Step 3: Cross multiply
    66,310.88x = 91,528.34 × 43,344.04
  4. Step 4: Simplify right side
    66,310.88x = 3,967,208,030.09
  5. Step 5: Solve for x
    x = 3,967,208,030.09/66,310.88
  6. Step 6: Final answer
    x = 59,827.41

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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.