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Finding the Fourth Proportional to 270,892.17, 406,352.84 and 112,961.61

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Solution

The fourth proportional to 270,892.17, 406,352.84 and 112,961.61 is: 169,448.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,892.17 : 406,352.84 = 112,961.61 : x
  2. Step 2: Convert to fraction form
    270,892.17/406,352.84 = 112,961.61/x
  3. Step 3: Cross multiply
    270,892.17x = 406,352.84 × 112,961.61
  4. Step 4: Simplify right side
    270,892.17x = 45,902,270,469.66
  5. Step 5: Solve for x
    x = 45,902,270,469.66/270,892.17
  6. Step 6: Final answer
    x = 169,448.49

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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.