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Finding the Fourth Proportional to 179,697.20, 269,740.20 and 113,212.40

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Solution

The fourth proportional to 179,697.20, 269,740.20 and 113,212.40 is: 169,941.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,697.20 : 269,740.20 = 113,212.40 : x
  2. Step 2: Convert to fraction form
    179,697.20/269,740.20 = 113,212.40/x
  3. Step 3: Cross multiply
    179,697.20x = 269,740.20 × 113,212.40
  4. Step 4: Simplify right side
    179,697.20x = 30,537,935,418.48
  5. Step 5: Solve for x
    x = 30,537,935,418.48/179,697.20
  6. Step 6: Final answer
    x = 169,941.08

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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.