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Finding the Fourth Proportional to 400,979.38, 601,092.34 and 134,553.06

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Solution

The fourth proportional to 400,979.38, 601,092.34 and 134,553.06 is: 201,703.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,979.38 : 601,092.34 = 134,553.06 : x
  2. Step 2: Convert to fraction form
    400,979.38/601,092.34 = 134,553.06/x
  3. Step 3: Cross multiply
    400,979.38x = 601,092.34 × 134,553.06
  4. Step 4: Simplify right side
    400,979.38x = 80,878,813,689.56
  5. Step 5: Solve for x
    x = 80,878,813,689.56/400,979.38
  6. Step 6: Final answer
    x = 201,703.17

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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.