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Finding the Fourth Proportional to 204,681.76, 307,033.56 and 64,451.32

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Solution

The fourth proportional to 204,681.76, 307,033.56 and 64,451.32 is: 96,680.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,681.76 : 307,033.56 = 64,451.32 : x
  2. Step 2: Convert to fraction form
    204,681.76/307,033.56 = 64,451.32/x
  3. Step 3: Cross multiply
    204,681.76x = 307,033.56 × 64,451.32
  4. Step 4: Simplify right side
    204,681.76x = 19,788,718,226.30
  5. Step 5: Solve for x
    x = 19,788,718,226.30/204,681.76
  6. Step 6: Final answer
    x = 96,680.42

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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.