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Finding the Fourth Proportional to 108,941.88, 150,356.16 and 66,524.88

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Solution

The fourth proportional to 108,941.88, 150,356.16 and 66,524.88 is: 91,814.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,941.88 : 150,356.16 = 66,524.88 : x
  2. Step 2: Convert to fraction form
    108,941.88/150,356.16 = 66,524.88/x
  3. Step 3: Cross multiply
    108,941.88x = 150,356.16 × 66,524.88
  4. Step 4: Simplify right side
    108,941.88x = 10,002,425,501.26
  5. Step 5: Solve for x
    x = 10,002,425,501.26/108,941.88
  6. Step 6: Final answer
    x = 91,814.33

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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.