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Finding the Fourth Proportional to 205,892.17, 308,808.99 and 79,591.91

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Solution

The fourth proportional to 205,892.17, 308,808.99 and 79,591.91 is: 119,376.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,892.17 : 308,808.99 = 79,591.91 : x
  2. Step 2: Convert to fraction form
    205,892.17/308,808.99 = 79,591.91/x
  3. Step 3: Cross multiply
    205,892.17x = 308,808.99 × 79,591.91
  4. Step 4: Simplify right side
    205,892.17x = 24,578,695,795.23
  5. Step 5: Solve for x
    x = 24,578,695,795.23/205,892.17
  6. Step 6: Final answer
    x = 119,376.55

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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.