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Finding the Fourth Proportional to 270,909.60, 406,263.84 and 113,148.64

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Solution

The fourth proportional to 270,909.60, 406,263.84 and 113,148.64 is: 169,680.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,909.60 : 406,263.84 = 113,148.64 : x
  2. Step 2: Convert to fraction form
    270,909.60/406,263.84 = 113,148.64/x
  3. Step 3: Cross multiply
    270,909.60x = 406,263.84 × 113,148.64
  4. Step 4: Simplify right side
    270,909.60x = 45,968,200,977.18
  5. Step 5: Solve for x
    x = 45,968,200,977.18/270,909.60
  6. Step 6: Final answer
    x = 169,680.96

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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.