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Finding the Fourth Proportional to 117,410.66, 162,022.28 and 63,694.55

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Solution

The fourth proportional to 117,410.66, 162,022.28 and 63,694.55 is: 87,896.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,410.66 : 162,022.28 = 63,694.55 : x
  2. Step 2: Convert to fraction form
    117,410.66/162,022.28 = 63,694.55/x
  3. Step 3: Cross multiply
    117,410.66x = 162,022.28 × 63,694.55
  4. Step 4: Simplify right side
    117,410.66x = 10,319,936,301.16
  5. Step 5: Solve for x
    x = 10,319,936,301.16/117,410.66
  6. Step 6: Final answer
    x = 87,896.07

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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.