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Finding the Fourth Proportional to 79,690.29, 119,516.29 and 23,515.22

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Solution

The fourth proportional to 79,690.29, 119,516.29 and 23,515.22 is: 35,267.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,690.29 : 119,516.29 = 23,515.22 : x
  2. Step 2: Convert to fraction form
    79,690.29/119,516.29 = 23,515.22/x
  3. Step 3: Cross multiply
    79,690.29x = 119,516.29 × 23,515.22
  4. Step 4: Simplify right side
    79,690.29x = 2,810,451,852.93
  5. Step 5: Solve for x
    x = 2,810,451,852.93/79,690.29
  6. Step 6: Final answer
    x = 35,267.18

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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.