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Finding the Fourth Proportional to 204,555.43, 306,881.43 and 64,314.05

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Solution

The fourth proportional to 204,555.43, 306,881.43 and 64,314.05 is: 96,486.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,555.43 : 306,881.43 = 64,314.05 : x
  2. Step 2: Convert to fraction form
    204,555.43/306,881.43 = 64,314.05/x
  3. Step 3: Cross multiply
    204,555.43x = 306,881.43 × 64,314.05
  4. Step 4: Simplify right side
    204,555.43x = 19,736,787,633.09
  5. Step 5: Solve for x
    x = 19,736,787,633.09/204,555.43
  6. Step 6: Final answer
    x = 96,486.26

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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.