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Finding the Fourth Proportional to 284,019.72, 391,877.14 and 173,610.08

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Solution

The fourth proportional to 284,019.72, 391,877.14 and 173,610.08 is: 239,539.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,019.72 : 391,877.14 = 173,610.08 : x
  2. Step 2: Convert to fraction form
    284,019.72/391,877.14 = 173,610.08/x
  3. Step 3: Cross multiply
    284,019.72x = 391,877.14 × 173,610.08
  4. Step 4: Simplify right side
    284,019.72x = 68,033,823,231.53
  5. Step 5: Solve for x
    x = 68,033,823,231.53/284,019.72
  6. Step 6: Final answer
    x = 239,539.09

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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.