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Finding the Fourth Proportional to 108,441.72, 149,648.11 and 60,695.06

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Solution

The fourth proportional to 108,441.72, 149,648.11 and 60,695.06 is: 83,758.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,441.72 : 149,648.11 = 60,695.06 : x
  2. Step 2: Convert to fraction form
    108,441.72/149,648.11 = 60,695.06/x
  3. Step 3: Cross multiply
    108,441.72x = 149,648.11 × 60,695.06
  4. Step 4: Simplify right side
    108,441.72x = 9,082,900,115.36
  5. Step 5: Solve for x
    x = 9,082,900,115.36/108,441.72
  6. Step 6: Final answer
    x = 83,758.36

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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.