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Finding the Fourth Proportional to 500,667.77, 751,076.98 and 145,635.05

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Solution

The fourth proportional to 500,667.77, 751,076.98 and 145,635.05 is: 218,474.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,667.77 : 751,076.98 = 145,635.05 : x
  2. Step 2: Convert to fraction form
    500,667.77/751,076.98 = 145,635.05/x
  3. Step 3: Cross multiply
    500,667.77x = 751,076.98 × 145,635.05
  4. Step 4: Simplify right side
    500,667.77x = 109,383,129,416.68
  5. Step 5: Solve for x
    x = 109,383,129,416.68/500,667.77
  6. Step 6: Final answer
    x = 218,474.48

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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.