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Finding the Fourth Proportional to 178,752.64, 268,163.52 and 67,936

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Solution

The fourth proportional to 178,752.64, 268,163.52 and 67,936 is: 101,917.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,752.64 : 268,163.52 = 67,936 : x
  2. Step 2: Convert to fraction form
    178,752.64/268,163.52 = 67,936/x
  3. Step 3: Cross multiply
    178,752.64x = 268,163.52 × 67,936
  4. Step 4: Simplify right side
    178,752.64x = 18,217,956,894.72
  5. Step 5: Solve for x
    x = 18,217,956,894.72/178,752.64
  6. Step 6: Final answer
    x = 101,917.13

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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.