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Finding the Fourth Proportional to 178,771.40, 268,077.90 and 60,410.60

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Solution

The fourth proportional to 178,771.40, 268,077.90 and 60,410.60 is: 90,589.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,771.40 : 268,077.90 = 60,410.60 : x
  2. Step 2: Convert to fraction form
    178,771.40/268,077.90 = 60,410.60/x
  3. Step 3: Cross multiply
    178,771.40x = 268,077.90 × 60,410.60
  4. Step 4: Simplify right side
    178,771.40x = 16,194,746,785.74
  5. Step 5: Solve for x
    x = 16,194,746,785.74/178,771.40
  6. Step 6: Final answer
    x = 90,589.14

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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.