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Finding the Fourth Proportional to 66,549.48, 91,868.22 and 43,901.88

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Solution

The fourth proportional to 66,549.48, 91,868.22 and 43,901.88 is: 60,604.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,549.48 : 91,868.22 = 43,901.88 : x
  2. Step 2: Convert to fraction form
    66,549.48/91,868.22 = 43,901.88/x
  3. Step 3: Cross multiply
    66,549.48x = 91,868.22 × 43,901.88
  4. Step 4: Simplify right side
    66,549.48x = 4,033,187,570.25
  5. Step 5: Solve for x
    x = 4,033,187,570.25/66,549.48
  6. Step 6: Final answer
    x = 60,604.34

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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.