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Finding the Fourth Proportional to 376,551.83, 519,644.90 and 206,787.17

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Solution

The fourth proportional to 376,551.83, 519,644.90 and 206,787.17 is: 285,368.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,551.83 : 519,644.90 = 206,787.17 : x
  2. Step 2: Convert to fraction form
    376,551.83/519,644.90 = 206,787.17/x
  3. Step 3: Cross multiply
    376,551.83x = 519,644.90 × 206,787.17
  4. Step 4: Simplify right side
    376,551.83x = 107,455,898,275.93
  5. Step 5: Solve for x
    x = 107,455,898,275.93/376,551.83
  6. Step 6: Final answer
    x = 285,368.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.