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Finding the Fourth Proportional to 108,754.56, 149,631.88 and 88,153.04

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Solution

The fourth proportional to 108,754.56, 149,631.88 and 88,153.04 is: 121,286.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,754.56 : 149,631.88 = 88,153.04 : x
  2. Step 2: Convert to fraction form
    108,754.56/149,631.88 = 88,153.04/x
  3. Step 3: Cross multiply
    108,754.56x = 149,631.88 × 88,153.04
  4. Step 4: Simplify right side
    108,754.56x = 13,190,505,102.92
  5. Step 5: Solve for x
    x = 13,190,505,102.92/108,754.56
  6. Step 6: Final answer
    x = 121,286.92

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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.