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Finding the Fourth Proportional to 96,630.30, 144,950 and 79,731.96

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Solution

The fourth proportional to 96,630.30, 144,950 and 79,731.96 is: 119,601.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,630.30 : 144,950 = 79,731.96 : x
  2. Step 2: Convert to fraction form
    96,630.30/144,950 = 79,731.96/x
  3. Step 3: Cross multiply
    96,630.30x = 144,950 × 79,731.96
  4. Step 4: Simplify right side
    96,630.30x = 11,557,147,602
  5. Step 5: Solve for x
    x = 11,557,147,602/96,630.30
  6. Step 6: Final answer
    x = 119,601.69

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.