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Finding the Fourth Proportional to 66,544.84, 91,722.48 and 47,170.26

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Solution

The fourth proportional to 66,544.84, 91,722.48 and 47,170.26 is: 65,017.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,544.84 : 91,722.48 = 47,170.26 : x
  2. Step 2: Convert to fraction form
    66,544.84/91,722.48 = 47,170.26/x
  3. Step 3: Cross multiply
    66,544.84x = 91,722.48 × 47,170.26
  4. Step 4: Simplify right side
    66,544.84x = 4,326,573,229.44
  5. Step 5: Solve for x
    x = 4,326,573,229.44/66,544.84
  6. Step 6: Final answer
    x = 65,017.41

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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.