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Finding the Fourth Proportional to 189,805.33, 284,757.54 and 56,685.61

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Solution

The fourth proportional to 189,805.33, 284,757.54 and 56,685.61 is: 85,043.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,805.33 : 284,757.54 = 56,685.61 : x
  2. Step 2: Convert to fraction form
    189,805.33/284,757.54 = 56,685.61/x
  3. Step 3: Cross multiply
    189,805.33x = 284,757.54 × 56,685.61
  4. Step 4: Simplify right side
    189,805.33x = 16,141,654,857.00
  5. Step 5: Solve for x
    x = 16,141,654,857.00/189,805.33
  6. Step 6: Final answer
    x = 85,043.21

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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.