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Finding the Fourth Proportional to 173,590.36, 260,435.46 and 55,279.96

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Solution

The fourth proportional to 173,590.36, 260,435.46 and 55,279.96 is: 82,935.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,590.36 : 260,435.46 = 55,279.96 : x
  2. Step 2: Convert to fraction form
    173,590.36/260,435.46 = 55,279.96/x
  3. Step 3: Cross multiply
    173,590.36x = 260,435.46 × 55,279.96
  4. Step 4: Simplify right side
    173,590.36x = 14,396,861,811.38
  5. Step 5: Solve for x
    x = 14,396,861,811.38/173,590.36
  6. Step 6: Final answer
    x = 82,935.84

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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.