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Finding the Fourth Proportional to 110,398.69, 165,599.66 and 31,512.97

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Solution

The fourth proportional to 110,398.69, 165,599.66 and 31,512.97 is: 47,269.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,398.69 : 165,599.66 = 31,512.97 : x
  2. Step 2: Convert to fraction form
    110,398.69/165,599.66 = 31,512.97/x
  3. Step 3: Cross multiply
    110,398.69x = 165,599.66 × 31,512.97
  4. Step 4: Simplify right side
    110,398.69x = 5,218,536,782.37
  5. Step 5: Solve for x
    x = 5,218,536,782.37/110,398.69
  6. Step 6: Final answer
    x = 47,269.92

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1.5x scale

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.