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Finding the Fourth Proportional to 117,604.56, 162,296.12 and 63,890.64

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Solution

The fourth proportional to 117,604.56, 162,296.12 and 63,890.64 is: 88,170.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,604.56 : 162,296.12 = 63,890.64 : x
  2. Step 2: Convert to fraction form
    117,604.56/162,296.12 = 63,890.64/x
  3. Step 3: Cross multiply
    117,604.56x = 162,296.12 × 63,890.64
  4. Step 4: Simplify right side
    117,604.56x = 10,369,202,976.32
  5. Step 5: Solve for x
    x = 10,369,202,976.32/117,604.56
  6. Step 6: Final answer
    x = 88,170.08

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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.