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Finding the Fourth Proportional to 154,794.88, 232,022.34 and 79,920.64

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Solution

The fourth proportional to 154,794.88, 232,022.34 and 79,920.64 is: 119,793.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,794.88 : 232,022.34 = 79,920.64 : x
  2. Step 2: Convert to fraction form
    154,794.88/232,022.34 = 79,920.64/x
  3. Step 3: Cross multiply
    154,794.88x = 232,022.34 × 79,920.64
  4. Step 4: Simplify right side
    154,794.88x = 18,543,373,907.10
  5. Step 5: Solve for x
    x = 18,543,373,907.10/154,794.88
  6. Step 6: Final answer
    x = 119,793.20

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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.