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Finding the Fourth Proportional to 348,540.10, 522,810.15 and 111,906.70

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Solution

The fourth proportional to 348,540.10, 522,810.15 and 111,906.70 is: 167,860.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,540.10 : 522,810.15 = 111,906.70 : x
  2. Step 2: Convert to fraction form
    348,540.10/522,810.15 = 111,906.70/x
  3. Step 3: Cross multiply
    348,540.10x = 522,810.15 × 111,906.70
  4. Step 4: Simplify right side
    348,540.10x = 58,505,958,613.01
  5. Step 5: Solve for x
    x = 58,505,958,613.01/348,540.10
  6. Step 6: Final answer
    x = 167,860.05

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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.