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Finding the Fourth Proportional to 108,490.52, 149,717.15 and 60,745.88

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Solution

The fourth proportional to 108,490.52, 149,717.15 and 60,745.88 is: 83,829.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,490.52 : 149,717.15 = 60,745.88 : x
  2. Step 2: Convert to fraction form
    108,490.52/149,717.15 = 60,745.88/x
  3. Step 3: Cross multiply
    108,490.52x = 149,717.15 × 60,745.88
  4. Step 4: Simplify right side
    108,490.52x = 9,094,698,975.53
  5. Step 5: Solve for x
    x = 9,094,698,975.53/108,490.52
  6. Step 6: Final answer
    x = 83,829.44

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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.