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Finding the Fourth Proportional to 112,580.69, 169,064.22 and 99,958.97

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Solution

The fourth proportional to 112,580.69, 169,064.22 and 99,958.97 is: 150,109.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,580.69 : 169,064.22 = 99,958.97 : x
  2. Step 2: Convert to fraction form
    112,580.69/169,064.22 = 99,958.97/x
  3. Step 3: Cross multiply
    112,580.69x = 169,064.22 × 99,958.97
  4. Step 4: Simplify right side
    112,580.69x = 16,899,485,295.05
  5. Step 5: Solve for x
    x = 16,899,485,295.05/112,580.69
  6. Step 6: Final answer
    x = 150,109.98

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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.