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Finding the Fourth Proportional to 484,342.42, 726,540.92 and 147,394.03

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Solution

The fourth proportional to 484,342.42, 726,540.92 and 147,394.03 is: 221,099.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,342.42 : 726,540.92 = 147,394.03 : x
  2. Step 2: Convert to fraction form
    484,342.42/726,540.92 = 147,394.03/x
  3. Step 3: Cross multiply
    484,342.42x = 726,540.92 × 147,394.03
  4. Step 4: Simplify right side
    484,342.42x = 107,087,794,158.71
  5. Step 5: Solve for x
    x = 107,087,794,158.71/484,342.42
  6. Step 6: Final answer
    x = 221,099.35

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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.