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Finding the Fourth Proportional to 79,400.78, 119,025.36 and 29,467.52

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Solution

The fourth proportional to 79,400.78, 119,025.36 and 29,467.52 is: 44,173.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,400.78 : 119,025.36 = 29,467.52 : x
  2. Step 2: Convert to fraction form
    79,400.78/119,025.36 = 29,467.52/x
  3. Step 3: Cross multiply
    79,400.78x = 119,025.36 × 29,467.52
  4. Step 4: Simplify right side
    79,400.78x = 3,507,382,176.31
  5. Step 5: Solve for x
    x = 3,507,382,176.31/79,400.78
  6. Step 6: Final answer
    x = 44,173.15

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1.5x scale

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.