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Finding the Fourth Proportional to 108,660.13, 149,951.52 and 63,369.52

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Solution

The fourth proportional to 108,660.13, 149,951.52 and 63,369.52 is: 87,450.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,660.13 : 149,951.52 = 63,369.52 : x
  2. Step 2: Convert to fraction form
    108,660.13/149,951.52 = 63,369.52/x
  3. Step 3: Cross multiply
    108,660.13x = 149,951.52 × 63,369.52
  4. Step 4: Simplify right side
    108,660.13x = 9,502,355,845.67
  5. Step 5: Solve for x
    x = 9,502,355,845.67/108,660.13
  6. Step 6: Final answer
    x = 87,450.25

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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.