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Finding the Fourth Proportional to 96,644.26, 144,970.96 and 79,745.93

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Solution

The fourth proportional to 96,644.26, 144,970.96 and 79,745.93 is: 119,622.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,644.26 : 144,970.96 = 79,745.93 : x
  2. Step 2: Convert to fraction form
    96,644.26/144,970.96 = 79,745.93/x
  3. Step 3: Cross multiply
    96,644.26x = 144,970.96 × 79,745.93
  4. Step 4: Simplify right side
    96,644.26x = 11,560,843,828.83
  5. Step 5: Solve for x
    x = 11,560,843,828.83/96,644.26
  6. Step 6: Final answer
    x = 119,622.66

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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.