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Finding the Fourth Proportional to 264,574.11, 396,915.84 and 87,091.77

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Solution

The fourth proportional to 264,574.11, 396,915.84 and 87,091.77 is: 130,655.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,574.11 : 396,915.84 = 87,091.77 : x
  2. Step 2: Convert to fraction form
    264,574.11/396,915.84 = 87,091.77/x
  3. Step 3: Cross multiply
    264,574.11x = 396,915.84 × 87,091.77
  4. Step 4: Simplify right side
    264,574.11x = 34,568,103,046.64
  5. Step 5: Solve for x
    x = 34,568,103,046.64/264,574.11
  6. Step 6: Final answer
    x = 130,655.65

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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.