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Finding the Fourth Proportional to 204,574.60, 306,861.90 and 64,376.20

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Solution

The fourth proportional to 204,574.60, 306,861.90 and 64,376.20 is: 96,564.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,574.60 : 306,861.90 = 64,376.20 : x
  2. Step 2: Convert to fraction form
    204,574.60/306,861.90 = 64,376.20/x
  3. Step 3: Cross multiply
    204,574.60x = 306,861.90 × 64,376.20
  4. Step 4: Simplify right side
    204,574.60x = 19,754,603,046.78
  5. Step 5: Solve for x
    x = 19,754,603,046.78/204,574.60
  6. Step 6: Final answer
    x = 96,564.30

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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.