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Finding the Fourth Proportional to 117,811.52, 162,578.11 and 64,095.31

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Solution

The fourth proportional to 117,811.52, 162,578.11 and 64,095.31 is: 88,450.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,811.52 : 162,578.11 = 64,095.31 : x
  2. Step 2: Convert to fraction form
    117,811.52/162,578.11 = 64,095.31/x
  3. Step 3: Cross multiply
    117,811.52x = 162,578.11 × 64,095.31
  4. Step 4: Simplify right side
    117,811.52x = 10,420,494,359.66
  5. Step 5: Solve for x
    x = 10,420,494,359.66/117,811.52
  6. Step 6: Final answer
    x = 88,450.56

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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.