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Finding the Fourth Proportional to 519,902.70, 779,881.77 and 164,944.05

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Solution

The fourth proportional to 519,902.70, 779,881.77 and 164,944.05 is: 247,424.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,902.70 : 779,881.77 = 164,944.05 : x
  2. Step 2: Convert to fraction form
    519,902.70/779,881.77 = 164,944.05/x
  3. Step 3: Cross multiply
    519,902.70x = 779,881.77 × 164,944.05
  4. Step 4: Simplify right side
    519,902.70x = 128,636,857,664.97
  5. Step 5: Solve for x
    x = 128,636,857,664.97/519,902.70
  6. Step 6: Final answer
    x = 247,424.87

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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.