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Finding the Fourth Proportional to 484,012.96, 726,054 and 129,025.12

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Solution

The fourth proportional to 484,012.96, 726,054 and 129,025.12 is: 193,546.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,012.96 : 726,054 = 129,025.12 : x
  2. Step 2: Convert to fraction form
    484,012.96/726,054 = 129,025.12/x
  3. Step 3: Cross multiply
    484,012.96x = 726,054 × 129,025.12
  4. Step 4: Simplify right side
    484,012.96x = 93,679,204,476.48
  5. Step 5: Solve for x
    x = 93,679,204,476.48/484,012.96
  6. Step 6: Final answer
    x = 193,546.89

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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.