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Finding the Fourth Proportional to 178,766.90, 268,150.35 and 54,107.90

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Solution

The fourth proportional to 178,766.90, 268,150.35 and 54,107.90 is: 81,161.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,766.90 : 268,150.35 = 54,107.90 : x
  2. Step 2: Convert to fraction form
    178,766.90/268,150.35 = 54,107.90/x
  3. Step 3: Cross multiply
    178,766.90x = 268,150.35 × 54,107.90
  4. Step 4: Simplify right side
    178,766.90x = 14,509,052,322.77
  5. Step 5: Solve for x
    x = 14,509,052,322.77/178,766.90
  6. Step 6: Final answer
    x = 81,161.85

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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.