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Finding the Fourth Proportional to 108,633.78, 149,912.04 and 60,235.47

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Solution

The fourth proportional to 108,633.78, 149,912.04 and 60,235.47 is: 83,123.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,633.78 : 149,912.04 = 60,235.47 : x
  2. Step 2: Convert to fraction form
    108,633.78/149,912.04 = 60,235.47/x
  3. Step 3: Cross multiply
    108,633.78x = 149,912.04 × 60,235.47
  4. Step 4: Simplify right side
    108,633.78x = 9,030,022,188.06
  5. Step 5: Solve for x
    x = 9,030,022,188.06/108,633.78
  6. Step 6: Final answer
    x = 83,123.52

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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.