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Finding the Fourth Proportional to 441,667.52, 662,361.83 and 142,081.31

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Solution

The fourth proportional to 441,667.52, 662,361.83 and 142,081.31 is: 213,077.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,667.52 : 662,361.83 = 142,081.31 : x
  2. Step 2: Convert to fraction form
    441,667.52/662,361.83 = 142,081.31/x
  3. Step 3: Cross multiply
    441,667.52x = 662,361.83 × 142,081.31
  4. Step 4: Simplify right side
    441,667.52x = 94,109,233,188.59
  5. Step 5: Solve for x
    x = 94,109,233,188.59/441,667.52
  6. Step 6: Final answer
    x = 213,077.10

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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.