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Finding the Fourth Proportional to 189,753.15, 284,624.83 and 61,668.72

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Solution

The fourth proportional to 189,753.15, 284,624.83 and 61,668.72 is: 92,501.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,753.15 : 284,624.83 = 61,668.72 : x
  2. Step 2: Convert to fraction form
    189,753.15/284,624.83 = 61,668.72/x
  3. Step 3: Cross multiply
    189,753.15x = 284,624.83 × 61,668.72
  4. Step 4: Simplify right side
    189,753.15x = 17,552,449,706.75
  5. Step 5: Solve for x
    x = 17,552,449,706.75/189,753.15
  6. Step 6: Final answer
    x = 92,501.49

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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.