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Finding the Fourth Proportional to 178,891.90, 268,337.85 and 108,907.90

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Solution

The fourth proportional to 178,891.90, 268,337.85 and 108,907.90 is: 163,361.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,891.90 : 268,337.85 = 108,907.90 : x
  2. Step 2: Convert to fraction form
    178,891.90/268,337.85 = 108,907.90/x
  3. Step 3: Cross multiply
    178,891.90x = 268,337.85 × 108,907.90
  4. Step 4: Simplify right side
    178,891.90x = 29,224,111,734.02
  5. Step 5: Solve for x
    x = 29,224,111,734.02/178,891.90
  6. Step 6: Final answer
    x = 163,361.85

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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.