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Finding the Fourth Proportional to 484,431.60, 726,863.40 and 169,114.80

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Solution

The fourth proportional to 484,431.60, 726,863.40 and 169,114.80 is: 253,747.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,431.60 : 726,863.40 = 169,114.80 : x
  2. Step 2: Convert to fraction form
    484,431.60/726,863.40 = 169,114.80/x
  3. Step 3: Cross multiply
    484,431.60x = 726,863.40 × 169,114.80
  4. Step 4: Simplify right side
    484,431.60x = 122,923,358,518.32
  5. Step 5: Solve for x
    x = 122,923,358,518.32/484,431.60
  6. Step 6: Final answer
    x = 253,747.61

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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.