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Finding the Fourth Proportional to 386,596.60, 579,887.58 and 158,843.80

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Solution

The fourth proportional to 386,596.60, 579,887.58 and 158,843.80 is: 238,262.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,596.60 : 579,887.58 = 158,843.80 : x
  2. Step 2: Convert to fraction form
    386,596.60/579,887.58 = 158,843.80/x
  3. Step 3: Cross multiply
    386,596.60x = 579,887.58 × 158,843.80
  4. Step 4: Simplify right side
    386,596.60x = 92,111,546,780.00
  5. Step 5: Solve for x
    x = 92,111,546,780.00/386,596.60
  6. Step 6: Final answer
    x = 238,262.69

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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.