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Finding the Fourth Proportional to 113,191.44, 169,786.96 and 30,085.44

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Solution

The fourth proportional to 113,191.44, 169,786.96 and 30,085.44 is: 45,128.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,191.44 : 169,786.96 = 30,085.44 : x
  2. Step 2: Convert to fraction form
    113,191.44/169,786.96 = 30,085.44/x
  3. Step 3: Cross multiply
    113,191.44x = 169,786.96 × 30,085.44
  4. Step 4: Simplify right side
    113,191.44x = 5,108,115,397.86
  5. Step 5: Solve for x
    x = 5,108,115,397.86/113,191.44
  6. Step 6: Final answer
    x = 45,128.11

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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.