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Finding the Fourth Proportional to 188,452.46, 260,078.82 and 107,905.22

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Solution

The fourth proportional to 188,452.46, 260,078.82 and 107,905.22 is: 148,917.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,452.46 : 260,078.82 = 107,905.22 : x
  2. Step 2: Convert to fraction form
    188,452.46/260,078.82 = 107,905.22/x
  3. Step 3: Cross multiply
    188,452.46x = 260,078.82 × 107,905.22
  4. Step 4: Simplify right side
    188,452.46x = 28,063,862,289.44
  5. Step 5: Solve for x
    x = 28,063,862,289.44/188,452.46
  6. Step 6: Final answer
    x = 148,917.46

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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.