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Finding the Fourth Proportional to 281,732.60, 423,036.30 and 163,634.60

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Solution

The fourth proportional to 281,732.60, 423,036.30 and 163,634.60 is: 245,705.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,732.60 : 423,036.30 = 163,634.60 : x
  2. Step 2: Convert to fraction form
    281,732.60/423,036.30 = 163,634.60/x
  3. Step 3: Cross multiply
    281,732.60x = 423,036.30 × 163,634.60
  4. Step 4: Simplify right side
    281,732.60x = 69,223,375,735.98
  5. Step 5: Solve for x
    x = 69,223,375,735.98/281,732.60
  6. Step 6: Final answer
    x = 245,705.95

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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.