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Finding the Fourth Proportional to 79,676.10, 119,486.25 and 23,501.28

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Solution

The fourth proportional to 79,676.10, 119,486.25 and 23,501.28 is: 35,243.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,676.10 : 119,486.25 = 23,501.28 : x
  2. Step 2: Convert to fraction form
    79,676.10/119,486.25 = 23,501.28/x
  3. Step 3: Cross multiply
    79,676.10x = 119,486.25 × 23,501.28
  4. Step 4: Simplify right side
    79,676.10x = 2,808,079,817.40
  5. Step 5: Solve for x
    x = 2,808,079,817.40/79,676.10
  6. Step 6: Final answer
    x = 35,243.69

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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.