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Finding the Fourth Proportional to 168,951.86, 253,160.94 and 137,207.42

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Solution

The fourth proportional to 168,951.86, 253,160.94 and 137,207.42 is: 205,594.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,951.86 : 253,160.94 = 137,207.42 : x
  2. Step 2: Convert to fraction form
    168,951.86/253,160.94 = 137,207.42/x
  3. Step 3: Cross multiply
    168,951.86x = 253,160.94 × 137,207.42
  4. Step 4: Simplify right side
    168,951.86x = 34,735,559,620.25
  5. Step 5: Solve for x
    x = 34,735,559,620.25/168,951.86
  6. Step 6: Final answer
    x = 205,594.42

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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.