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Finding the Fourth Proportional to 519,496.20, 779,171.40 and 164,546.10

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Solution

The fourth proportional to 519,496.20, 779,171.40 and 164,546.10 is: 246,796.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,496.20 : 779,171.40 = 164,546.10 : x
  2. Step 2: Convert to fraction form
    519,496.20/779,171.40 = 164,546.10/x
  3. Step 3: Cross multiply
    519,496.20x = 779,171.40 × 164,546.10
  4. Step 4: Simplify right side
    519,496.20x = 128,209,615,101.54
  5. Step 5: Solve for x
    x = 128,209,615,101.54/519,496.20
  6. Step 6: Final answer
    x = 246,796.06

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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.