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Finding the Fourth Proportional to 270,729.20, 406,028.16 and 112,958.96

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Solution

The fourth proportional to 270,729.20, 406,028.16 and 112,958.96 is: 169,411.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,729.20 : 406,028.16 = 112,958.96 : x
  2. Step 2: Convert to fraction form
    270,729.20/406,028.16 = 112,958.96/x
  3. Step 3: Cross multiply
    270,729.20x = 406,028.16 × 112,958.96
  4. Step 4: Simplify right side
    270,729.20x = 45,864,518,684.31
  5. Step 5: Solve for x
    x = 45,864,518,684.31/270,729.20
  6. Step 6: Final answer
    x = 169,411.05

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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.