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Finding the Fourth Proportional to 79,509.81, 119,279.31 and 26,204.94

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Solution

The fourth proportional to 79,509.81, 119,279.31 and 26,204.94 is: 39,312.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,509.81 : 119,279.31 = 26,204.94 : x
  2. Step 2: Convert to fraction form
    79,509.81/119,279.31 = 26,204.94/x
  3. Step 3: Cross multiply
    79,509.81x = 119,279.31 × 26,204.94
  4. Step 4: Simplify right side
    79,509.81x = 3,125,707,161.79
  5. Step 5: Solve for x
    x = 3,125,707,161.79/79,509.81
  6. Step 6: Final answer
    x = 39,312.22

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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.