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Finding the Fourth Proportional to 108,633.56, 149,913.08 and 60,885.88

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Solution

The fourth proportional to 108,633.56, 149,913.08 and 60,885.88 is: 84,021.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,633.56 : 149,913.08 = 60,885.88 : x
  2. Step 2: Convert to fraction form
    108,633.56/149,913.08 = 60,885.88/x
  3. Step 3: Cross multiply
    108,633.56x = 149,913.08 × 60,885.88
  4. Step 4: Simplify right side
    108,633.56x = 9,127,589,348.42
  5. Step 5: Solve for x
    x = 9,127,589,348.42/108,633.56
  6. Step 6: Final answer
    x = 84,021.82

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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.