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Finding the Fourth Proportional to 66,504.84, 91,702.26 and 54,367.44

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Solution

The fourth proportional to 66,504.84, 91,702.26 and 54,367.44 is: 74,966.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,504.84 : 91,702.26 = 54,367.44 : x
  2. Step 2: Convert to fraction form
    66,504.84/91,702.26 = 54,367.44/x
  3. Step 3: Cross multiply
    66,504.84x = 91,702.26 × 54,367.44
  4. Step 4: Simplify right side
    66,504.84x = 4,985,617,118.41
  5. Step 5: Solve for x
    x = 4,985,617,118.41/66,504.84
  6. Step 6: Final answer
    x = 74,966.23

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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.