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Finding the Fourth Proportional to 322,356, 483,551.28 and 100,757.28

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Solution

The fourth proportional to 322,356, 483,551.28 and 100,757.28 is: 151,141.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,356 : 483,551.28 = 100,757.28 : x
  2. Step 2: Convert to fraction form
    322,356/483,551.28 = 100,757.28/x
  3. Step 3: Cross multiply
    322,356x = 483,551.28 × 100,757.28
  4. Step 4: Simplify right side
    322,356x = 48,721,311,713.32
  5. Step 5: Solve for x
    x = 48,721,311,713.32/322,356
  6. Step 6: Final answer
    x = 151,141.32

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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.