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Finding the Fourth Proportional to 318,113.25, 477,157.42 and 107,751.19

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Solution

The fourth proportional to 318,113.25, 477,157.42 and 107,751.19 is: 161,622.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,113.25 : 477,157.42 = 107,751.19 : x
  2. Step 2: Convert to fraction form
    318,113.25/477,157.42 = 107,751.19/x
  3. Step 3: Cross multiply
    318,113.25x = 477,157.42 × 107,751.19
  4. Step 4: Simplify right side
    318,113.25x = 51,414,279,822.33
  5. Step 5: Solve for x
    x = 51,414,279,822.33/318,113.25
  6. Step 6: Final answer
    x = 161,622.57

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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.