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Finding the Fourth Proportional to 236,016.60, 353,975.70 and 86,327.40

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Solution

The fourth proportional to 236,016.60, 353,975.70 and 86,327.40 is: 129,473.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,016.60 : 353,975.70 = 86,327.40 : x
  2. Step 2: Convert to fraction form
    236,016.60/353,975.70 = 86,327.40/x
  3. Step 3: Cross multiply
    236,016.60x = 353,975.70 × 86,327.40
  4. Step 4: Simplify right side
    236,016.60x = 30,557,801,844.18
  5. Step 5: Solve for x
    x = 30,557,801,844.18/236,016.60
  6. Step 6: Final answer
    x = 129,473.10

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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.