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Finding the Fourth Proportional to 135,495.20, 202,951.20 and 112,167.20

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Solution

The fourth proportional to 135,495.20, 202,951.20 and 112,167.20 is: 168,009.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,495.20 : 202,951.20 = 112,167.20 : x
  2. Step 2: Convert to fraction form
    135,495.20/202,951.20 = 112,167.20/x
  3. Step 3: Cross multiply
    135,495.20x = 202,951.20 × 112,167.20
  4. Step 4: Simplify right side
    135,495.20x = 22,764,467,840.64
  5. Step 5: Solve for x
    x = 22,764,467,840.64/135,495.20
  6. Step 6: Final answer
    x = 168,009.40

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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.