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Finding the Fourth Proportional to 264,518.45, 396,724.61 and 129,524.36

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Solution

The fourth proportional to 264,518.45, 396,724.61 and 129,524.36 is: 194,260.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,518.45 : 396,724.61 = 129,524.36 : x
  2. Step 2: Convert to fraction form
    264,518.45/396,724.61 = 129,524.36/x
  3. Step 3: Cross multiply
    264,518.45x = 396,724.61 × 129,524.36
  4. Step 4: Simplify right side
    264,518.45x = 51,385,502,522.12
  5. Step 5: Solve for x
    x = 51,385,502,522.12/264,518.45
  6. Step 6: Final answer
    x = 194,260.56

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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.