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Finding the Fourth Proportional to 191,906.60, 287,859.90 and 168,578.60

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Solution

The fourth proportional to 191,906.60, 287,859.90 and 168,578.60 is: 252,867.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,906.60 : 287,859.90 = 168,578.60 : x
  2. Step 2: Convert to fraction form
    191,906.60/287,859.90 = 168,578.60/x
  3. Step 3: Cross multiply
    191,906.60x = 287,859.90 × 168,578.60
  4. Step 4: Simplify right side
    191,906.60x = 48,527,018,938.14
  5. Step 5: Solve for x
    x = 48,527,018,938.14/191,906.60
  6. Step 6: Final answer
    x = 252,867.90

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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.