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Finding the Fourth Proportional to 235,877.75, 325,515.17 and 133,906.21

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Solution

The fourth proportional to 235,877.75, 325,515.17 and 133,906.21 is: 184,792.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,877.75 : 325,515.17 = 133,906.21 : x
  2. Step 2: Convert to fraction form
    235,877.75/325,515.17 = 133,906.21/x
  3. Step 3: Cross multiply
    235,877.75x = 325,515.17 × 133,906.21
  4. Step 4: Simplify right side
    235,877.75x = 43,588,503,499.29
  5. Step 5: Solve for x
    x = 43,588,503,499.29/235,877.75
  6. Step 6: Final answer
    x = 184,792.78

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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.