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Finding the Fourth Proportional to 236,521.60, 354,879.60 and 86,833.60

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Solution

The fourth proportional to 236,521.60, 354,879.60 and 86,833.60 is: 130,286.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,521.60 : 354,879.60 = 86,833.60 : x
  2. Step 2: Convert to fraction form
    236,521.60/354,879.60 = 86,833.60/x
  3. Step 3: Cross multiply
    236,521.60x = 354,879.60 × 86,833.60
  4. Step 4: Simplify right side
    236,521.60x = 30,815,473,234.56
  5. Step 5: Solve for x
    x = 30,815,473,234.56/236,521.60
  6. Step 6: Final answer
    x = 130,286.08

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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.