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Finding the Fourth Proportional to 204,203.40, 306,338.70 and 63,928.20

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Solution

The fourth proportional to 204,203.40, 306,338.70 and 63,928.20 is: 95,902.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,203.40 : 306,338.70 = 63,928.20 : x
  2. Step 2: Convert to fraction form
    204,203.40/306,338.70 = 63,928.20/x
  3. Step 3: Cross multiply
    204,203.40x = 306,338.70 × 63,928.20
  4. Step 4: Simplify right side
    204,203.40x = 19,583,681,681.34
  5. Step 5: Solve for x
    x = 19,583,681,681.34/204,203.40
  6. Step 6: Final answer
    x = 95,902.82

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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.