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Finding the Fourth Proportional to 264,586.64, 396,934.60 and 87,104.28

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Solution

The fourth proportional to 264,586.64, 396,934.60 and 87,104.28 is: 130,674.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,586.64 : 396,934.60 = 87,104.28 : x
  2. Step 2: Convert to fraction form
    264,586.64/396,934.60 = 87,104.28/x
  3. Step 3: Cross multiply
    264,586.64x = 396,934.60 × 87,104.28
  4. Step 4: Simplify right side
    264,586.64x = 34,574,702,540.09
  5. Step 5: Solve for x
    x = 34,574,702,540.09/264,586.64
  6. Step 6: Final answer
    x = 130,674.41

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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.