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Finding the Fourth Proportional to 264,322.05, 396,524.52 and 86,788.68

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Solution

The fourth proportional to 264,322.05, 396,524.52 and 86,788.68 is: 130,196.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,322.05 : 396,524.52 = 86,788.68 : x
  2. Step 2: Convert to fraction form
    264,322.05/396,524.52 = 86,788.68/x
  3. Step 3: Cross multiply
    264,322.05x = 396,524.52 × 86,788.68
  4. Step 4: Simplify right side
    264,322.05x = 34,413,839,678.43
  5. Step 5: Solve for x
    x = 34,413,839,678.43/264,322.05
  6. Step 6: Final answer
    x = 130,196.63

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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.