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Finding the Fourth Proportional to 270,630.76, 405,654.54 and 112,758.52

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Solution

The fourth proportional to 270,630.76, 405,654.54 and 112,758.52 is: 169,016.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,630.76 : 405,654.54 = 112,758.52 : x
  2. Step 2: Convert to fraction form
    270,630.76/405,654.54 = 112,758.52/x
  3. Step 3: Cross multiply
    270,630.76x = 405,654.54 × 112,758.52
  4. Step 4: Simplify right side
    270,630.76x = 45,741,005,561.68
  5. Step 5: Solve for x
    x = 45,741,005,561.68/270,630.76
  6. Step 6: Final answer
    x = 169,016.28

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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.