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Finding the Fourth Proportional to 110,858.70, 166,392.45 and 58,305.90

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Solution

The fourth proportional to 110,858.70, 166,392.45 and 58,305.90 is: 87,513.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,858.70 : 166,392.45 = 58,305.90 : x
  2. Step 2: Convert to fraction form
    110,858.70/166,392.45 = 58,305.90/x
  3. Step 3: Cross multiply
    110,858.70x = 166,392.45 × 58,305.90
  4. Step 4: Simplify right side
    110,858.70x = 9,701,661,550.46
  5. Step 5: Solve for x
    x = 9,701,661,550.46/110,858.70
  6. Step 6: Final answer
    x = 87,513.76

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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.