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Finding the Fourth Proportional to 117,198.50, 161,734.12 and 63,483.95

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Solution

The fourth proportional to 117,198.50, 161,734.12 and 63,483.95 is: 87,607.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,198.50 : 161,734.12 = 63,483.95 : x
  2. Step 2: Convert to fraction form
    117,198.50/161,734.12 = 63,483.95/x
  3. Step 3: Cross multiply
    117,198.50x = 161,734.12 × 63,483.95
  4. Step 4: Simplify right side
    117,198.50x = 10,267,521,033.00
  5. Step 5: Solve for x
    x = 10,267,521,033.00/117,198.50
  6. Step 6: Final answer
    x = 87,607.96

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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.