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Finding the Fourth Proportional to 204,839.30, 307,258.95 and 163,367.30

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Solution

The fourth proportional to 204,839.30, 307,258.95 and 163,367.30 is: 245,050.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,839.30 : 307,258.95 = 163,367.30 : x
  2. Step 2: Convert to fraction form
    204,839.30/307,258.95 = 163,367.30/x
  3. Step 3: Cross multiply
    204,839.30x = 307,258.95 × 163,367.30
  4. Step 4: Simplify right side
    204,839.30x = 50,196,065,062.34
  5. Step 5: Solve for x
    x = 50,196,065,062.34/204,839.30
  6. Step 6: Final answer
    x = 245,050.95

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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.