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Finding the Fourth Proportional to 133,229.48, 183,850.96 and 72,799.16

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Solution

The fourth proportional to 133,229.48, 183,850.96 and 72,799.16 is: 100,459.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,229.48 : 183,850.96 = 72,799.16 : x
  2. Step 2: Convert to fraction form
    133,229.48/183,850.96 = 72,799.16/x
  3. Step 3: Cross multiply
    133,229.48x = 183,850.96 × 72,799.16
  4. Step 4: Simplify right side
    133,229.48x = 13,384,195,453.19
  5. Step 5: Solve for x
    x = 13,384,195,453.19/133,229.48
  6. Step 6: Final answer
    x = 100,459.71

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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.