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Finding the Fourth Proportional to 200,437.62, 300,656.73 and 82,192.01

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Solution

The fourth proportional to 200,437.62, 300,656.73 and 82,192.01 is: 123,288.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,437.62 : 300,656.73 = 82,192.01 : x
  2. Step 2: Convert to fraction form
    200,437.62/300,656.73 = 82,192.01/x
  3. Step 3: Cross multiply
    200,437.62x = 300,656.73 × 82,192.01
  4. Step 4: Simplify right side
    200,437.62x = 24,711,579,455.44
  5. Step 5: Solve for x
    x = 24,711,579,455.44/200,437.62
  6. Step 6: Final answer
    x = 123,288.13

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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.