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Finding the Fourth Proportional to 108,153.72, 149,260.86 and 59,759.88

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Solution

The fourth proportional to 108,153.72, 149,260.86 and 59,759.88 is: 82,473.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,153.72 : 149,260.86 = 59,759.88 : x
  2. Step 2: Convert to fraction form
    108,153.72/149,260.86 = 59,759.88/x
  3. Step 3: Cross multiply
    108,153.72x = 149,260.86 × 59,759.88
  4. Step 4: Simplify right side
    108,153.72x = 8,919,811,082.30
  5. Step 5: Solve for x
    x = 8,919,811,082.30/108,153.72
  6. Step 6: Final answer
    x = 82,473.46

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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.