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Finding the Fourth Proportional to 519,944.84, 779,944.96 and 164,986.64

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Solution

The fourth proportional to 519,944.84, 779,944.96 and 164,986.64 is: 247,488.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,944.84 : 779,944.96 = 164,986.64 : x
  2. Step 2: Convert to fraction form
    519,944.84/779,944.96 = 164,986.64/x
  3. Step 3: Cross multiply
    519,944.84x = 779,944.96 × 164,986.64
  4. Step 4: Simplify right side
    519,944.84x = 128,680,498,335.33
  5. Step 5: Solve for x
    x = 128,680,498,335.33/519,944.84
  6. Step 6: Final answer
    x = 247,488.75

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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.