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Finding the Fourth Proportional to 117,697.72, 162,423.90 and 63,982.74

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Solution

The fourth proportional to 117,697.72, 162,423.90 and 63,982.74 is: 88,296.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,697.72 : 162,423.90 = 63,982.74 : x
  2. Step 2: Convert to fraction form
    117,697.72/162,423.90 = 63,982.74/x
  3. Step 3: Cross multiply
    117,697.72x = 162,423.90 × 63,982.74
  4. Step 4: Simplify right side
    117,697.72x = 10,392,326,163.49
  5. Step 5: Solve for x
    x = 10,392,326,163.49/117,697.72
  6. Step 6: Final answer
    x = 88,296.75

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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.