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Finding the Fourth Proportional to 79,812.86, 119,736.90 and 23,657.42

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Solution

The fourth proportional to 79,812.86, 119,736.90 and 23,657.42 is: 35,491.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,812.86 : 119,736.90 = 23,657.42 : x
  2. Step 2: Convert to fraction form
    79,812.86/119,736.90 = 23,657.42/x
  3. Step 3: Cross multiply
    79,812.86x = 119,736.90 × 23,657.42
  4. Step 4: Simplify right side
    79,812.86x = 2,832,666,132.80
  5. Step 5: Solve for x
    x = 2,832,666,132.80/79,812.86
  6. Step 6: Final answer
    x = 35,491.35

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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.