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Finding the Fourth Proportional to 235,260.59, 352,890.18 and 66,781.06

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Solution

The fourth proportional to 235,260.59, 352,890.18 and 66,781.06 is: 100,171.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,260.59 : 352,890.18 = 66,781.06 : x
  2. Step 2: Convert to fraction form
    235,260.59/352,890.18 = 66,781.06/x
  3. Step 3: Cross multiply
    235,260.59x = 352,890.18 × 66,781.06
  4. Step 4: Simplify right side
    235,260.59x = 23,566,379,789.83
  5. Step 5: Solve for x
    x = 23,566,379,789.83/235,260.59
  6. Step 6: Final answer
    x = 100,171.39

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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.