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Finding the Fourth Proportional to 270,493.05, 405,776.49 and 112,684.59

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Solution

The fourth proportional to 270,493.05, 405,776.49 and 112,684.59 is: 169,042.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,493.05 : 405,776.49 = 112,684.59 : x
  2. Step 2: Convert to fraction form
    270,493.05/405,776.49 = 112,684.59/x
  3. Step 3: Cross multiply
    270,493.05x = 405,776.49 × 112,684.59
  4. Step 4: Simplify right side
    270,493.05x = 45,724,757,407.29
  5. Step 5: Solve for x
    x = 45,724,757,407.29/270,493.05
  6. Step 6: Final answer
    x = 169,042.26

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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.