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Finding the Fourth Proportional to 123,782.46, 170,818.62 and 67,193.76

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Solution

The fourth proportional to 123,782.46, 170,818.62 and 67,193.76 is: 92,726.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,782.46 : 170,818.62 = 67,193.76 : x
  2. Step 2: Convert to fraction form
    123,782.46/170,818.62 = 67,193.76/x
  3. Step 3: Cross multiply
    123,782.46x = 170,818.62 × 67,193.76
  4. Step 4: Simplify right side
    123,782.46x = 11,477,945,355.81
  5. Step 5: Solve for x
    x = 11,477,945,355.81/123,782.46
  6. Step 6: Final answer
    x = 92,726.75

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.