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Finding the Fourth Proportional to 484,344.90, 726,544.68 and 147,396.54

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Solution

The fourth proportional to 484,344.90, 726,544.68 and 147,396.54 is: 221,103.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,344.90 : 726,544.68 = 147,396.54 : x
  2. Step 2: Convert to fraction form
    484,344.90/726,544.68 = 147,396.54/x
  3. Step 3: Cross multiply
    484,344.90x = 726,544.68 × 147,396.54
  4. Step 4: Simplify right side
    484,344.90x = 107,090,171,987.41
  5. Step 5: Solve for x
    x = 107,090,171,987.41/484,344.90
  6. Step 6: Final answer
    x = 221,103.13

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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.