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Finding the Fourth Proportional to 101,879.10, 152,615.88 and 79,588.44

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Solution

The fourth proportional to 101,879.10, 152,615.88 and 79,588.44 is: 119,224.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,879.10 : 152,615.88 = 79,588.44 : x
  2. Step 2: Convert to fraction form
    101,879.10/152,615.88 = 79,588.44/x
  3. Step 3: Cross multiply
    101,879.10x = 152,615.88 × 79,588.44
  4. Step 4: Simplify right side
    101,879.10x = 12,146,459,808.43
  5. Step 5: Solve for x
    x = 12,146,459,808.43/101,879.10
  6. Step 6: Final answer
    x = 119,224.26

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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.