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Finding the Fourth Proportional to 199,979.32, 300,116.36 and 94,797.88

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Solution

The fourth proportional to 199,979.32, 300,116.36 and 94,797.88 is: 142,266.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,979.32 : 300,116.36 = 94,797.88 : x
  2. Step 2: Convert to fraction form
    199,979.32/300,116.36 = 94,797.88/x
  3. Step 3: Cross multiply
    199,979.32x = 300,116.36 × 94,797.88
  4. Step 4: Simplify right side
    199,979.32x = 28,450,394,681.32
  5. Step 5: Solve for x
    x = 28,450,394,681.32/199,979.32
  6. Step 6: Final answer
    x = 142,266.68

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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.