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Finding the Fourth Proportional to 322,890.60, 484,271.10 and 154,410.60

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Solution

The fourth proportional to 322,890.60, 484,271.10 and 154,410.60 is: 231,584.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,890.60 : 484,271.10 = 154,410.60 : x
  2. Step 2: Convert to fraction form
    322,890.60/484,271.10 = 154,410.60/x
  3. Step 3: Cross multiply
    322,890.60x = 484,271.10 × 154,410.60
  4. Step 4: Simplify right side
    322,890.60x = 74,776,591,113.66
  5. Step 5: Solve for x
    x = 74,776,591,113.66/322,890.60
  6. Step 6: Final answer
    x = 231,584.91

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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.