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Finding the Fourth Proportional to 234,861.60, 351,621.12 and 155,818.56

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Solution

The fourth proportional to 234,861.60, 351,621.12 and 155,818.56 is: 233,282.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,861.60 : 351,621.12 = 155,818.56 : x
  2. Step 2: Convert to fraction form
    234,861.60/351,621.12 = 155,818.56/x
  3. Step 3: Cross multiply
    234,861.60x = 351,621.12 × 155,818.56
  4. Step 4: Simplify right side
    234,861.60x = 54,789,096,583.99
  5. Step 5: Solve for x
    x = 54,789,096,583.99/234,861.60
  6. Step 6: Final answer
    x = 233,282.48

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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.