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Finding the Fourth Proportional to 613,327.55, 919,991.05 and 164,036.75

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Solution

The fourth proportional to 613,327.55, 919,991.05 and 164,036.75 is: 246,055.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,327.55 : 919,991.05 = 164,036.75 : x
  2. Step 2: Convert to fraction form
    613,327.55/919,991.05 = 164,036.75/x
  3. Step 3: Cross multiply
    613,327.55x = 919,991.05 × 164,036.75
  4. Step 4: Simplify right side
    613,327.55x = 150,912,336,861.04
  5. Step 5: Solve for x
    x = 150,912,336,861.04/613,327.55
  6. Step 6: Final answer
    x = 246,055.05

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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.