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Finding the Fourth Proportional to 117,961.92, 162,794.28 and 88,838.16

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Solution

The fourth proportional to 117,961.92, 162,794.28 and 88,838.16 is: 122,601.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,961.92 : 162,794.28 = 88,838.16 : x
  2. Step 2: Convert to fraction form
    117,961.92/162,794.28 = 88,838.16/x
  3. Step 3: Cross multiply
    117,961.92x = 162,794.28 × 88,838.16
  4. Step 4: Simplify right side
    117,961.92x = 14,462,344,293.72
  5. Step 5: Solve for x
    x = 14,462,344,293.72/117,961.92
  6. Step 6: Final answer
    x = 122,601.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.