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Finding the Fourth Proportional to 163,937.20, 245,905.80 and 113,198.80

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Solution

The fourth proportional to 163,937.20, 245,905.80 and 113,198.80 is: 169,798.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,937.20 : 245,905.80 = 113,198.80 : x
  2. Step 2: Convert to fraction form
    163,937.20/245,905.80 = 113,198.80/x
  3. Step 3: Cross multiply
    163,937.20x = 245,905.80 × 113,198.80
  4. Step 4: Simplify right side
    163,937.20x = 27,836,241,473.04
  5. Step 5: Solve for x
    x = 27,836,241,473.04/163,937.20
  6. Step 6: Final answer
    x = 169,798.20

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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.