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Finding the Fourth Proportional to 376,153.48, 519,101.36 and 206,387.56

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Solution

The fourth proportional to 376,153.48, 519,101.36 and 206,387.56 is: 284,820.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,153.48 : 519,101.36 = 206,387.56 : x
  2. Step 2: Convert to fraction form
    376,153.48/519,101.36 = 206,387.56/x
  3. Step 3: Cross multiply
    376,153.48x = 519,101.36 × 206,387.56
  4. Step 4: Simplify right side
    376,153.48x = 107,136,063,083.08
  5. Step 5: Solve for x
    x = 107,136,063,083.08/376,153.48
  6. Step 6: Final answer
    x = 284,820.08

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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.