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Finding the Fourth Proportional to 79,776.10, 119,621.80 and 23,608.48

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Solution

The fourth proportional to 79,776.10, 119,621.80 and 23,608.48 is: 35,400.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,776.10 : 119,621.80 = 23,608.48 : x
  2. Step 2: Convert to fraction form
    79,776.10/119,621.80 = 23,608.48/x
  3. Step 3: Cross multiply
    79,776.10x = 119,621.80 × 23,608.48
  4. Step 4: Simplify right side
    79,776.10x = 2,824,088,872.86
  5. Step 5: Solve for x
    x = 2,824,088,872.86/79,776.10
  6. Step 6: Final answer
    x = 35,400.19

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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.