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Finding the Fourth Proportional to 363,270.40, 544,908.69 and 126,612.70

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Solution

The fourth proportional to 363,270.40, 544,908.69 and 126,612.70 is: 189,920.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,270.40 : 544,908.69 = 126,612.70 : x
  2. Step 2: Convert to fraction form
    363,270.40/544,908.69 = 126,612.70/x
  3. Step 3: Cross multiply
    363,270.40x = 544,908.69 × 126,612.70
  4. Step 4: Simplify right side
    363,270.40x = 68,992,360,494.36
  5. Step 5: Solve for x
    x = 68,992,360,494.36/363,270.40
  6. Step 6: Final answer
    x = 189,920.13

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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.