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Finding the Fourth Proportional to 178,991.95, 268,125.28 and 82,792.44

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Solution

The fourth proportional to 178,991.95, 268,125.28 and 82,792.44 is: 124,020.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,991.95 : 268,125.28 = 82,792.44 : x
  2. Step 2: Convert to fraction form
    178,991.95/268,125.28 = 82,792.44/x
  3. Step 3: Cross multiply
    178,991.95x = 268,125.28 × 82,792.44
  4. Step 4: Simplify right side
    178,991.95x = 22,198,746,156.88
  5. Step 5: Solve for x
    x = 22,198,746,156.88/178,991.95
  6. Step 6: Final answer
    x = 124,020.92

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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.