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Finding the Fourth Proportional to 200,714.70, 300,816.90 and 82,252.20

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Solution

The fourth proportional to 200,714.70, 300,816.90 and 82,252.20 is: 123,273.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,714.70 : 300,816.90 = 82,252.20 : x
  2. Step 2: Convert to fraction form
    200,714.70/300,816.90 = 82,252.20/x
  3. Step 3: Cross multiply
    200,714.70x = 300,816.90 × 82,252.20
  4. Step 4: Simplify right side
    200,714.70x = 24,742,851,822.18
  5. Step 5: Solve for x
    x = 24,742,851,822.18/200,714.70
  6. Step 6: Final answer
    x = 123,273.74

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1.5x scale

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.