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Finding the Fourth Proportional to 270,199.20, 405,444.72 and 112,536.48

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Solution

The fourth proportional to 270,199.20, 405,444.72 and 112,536.48 is: 168,865.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,199.20 : 405,444.72 = 112,536.48 : x
  2. Step 2: Convert to fraction form
    270,199.20/405,444.72 = 112,536.48/x
  3. Step 3: Cross multiply
    270,199.20x = 405,444.72 × 112,536.48
  4. Step 4: Simplify right side
    270,199.20x = 45,627,321,623.39
  5. Step 5: Solve for x
    x = 45,627,321,623.39/270,199.20
  6. Step 6: Final answer
    x = 168,865.49

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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.