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Finding the Fourth Proportional to 264,244, 396,407.28 and 86,710.64

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Solution

The fourth proportional to 264,244, 396,407.28 and 86,710.64 is: 130,079.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,244 : 396,407.28 = 86,710.64 : x
  2. Step 2: Convert to fraction form
    264,244/396,407.28 = 86,710.64/x
  3. Step 3: Cross multiply
    264,244x = 396,407.28 × 86,710.64
  4. Step 4: Simplify right side
    264,244x = 34,372,728,949.46
  5. Step 5: Solve for x
    x = 34,372,728,949.46/264,244
  6. Step 6: Final answer
    x = 130,079.51

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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.