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Finding the Fourth Proportional to 68,328.87, 102,493.31 and 36,695.41

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Solution

The fourth proportional to 68,328.87, 102,493.31 and 36,695.41 is: 55,043.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,328.87 : 102,493.31 = 36,695.41 : x
  2. Step 2: Convert to fraction form
    68,328.87/102,493.31 = 36,695.41/x
  3. Step 3: Cross multiply
    68,328.87x = 102,493.31 × 36,695.41
  4. Step 4: Simplify right side
    68,328.87x = 3,761,034,032.71
  5. Step 5: Solve for x
    x = 3,761,034,032.71/68,328.87
  6. Step 6: Final answer
    x = 55,043.12

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.