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Finding the Fourth Proportional to 181,645.20, 250,676.19 and 113,640.39

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Solution

The fourth proportional to 181,645.20, 250,676.19 and 113,640.39 is: 156,827.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,645.20 : 250,676.19 = 113,640.39 : x
  2. Step 2: Convert to fraction form
    181,645.20/250,676.19 = 113,640.39/x
  3. Step 3: Cross multiply
    181,645.20x = 250,676.19 × 113,640.39
  4. Step 4: Simplify right side
    181,645.20x = 28,486,939,995.31
  5. Step 5: Solve for x
    x = 28,486,939,995.31/181,645.20
  6. Step 6: Final answer
    x = 156,827.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.