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Finding the Fourth Proportional to 112,540.70, 168,811.05 and 29,434.70

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Solution

The fourth proportional to 112,540.70, 168,811.05 and 29,434.70 is: 44,152.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,540.70 : 168,811.05 = 29,434.70 : x
  2. Step 2: Convert to fraction form
    112,540.70/168,811.05 = 29,434.70/x
  3. Step 3: Cross multiply
    112,540.70x = 168,811.05 × 29,434.70
  4. Step 4: Simplify right side
    112,540.70x = 4,968,902,613.44
  5. Step 5: Solve for x
    x = 4,968,902,613.44/112,540.70
  6. Step 6: Final answer
    x = 44,152.05

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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.