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Finding the Fourth Proportional to 175,243, 263,413.20 and 115,654.39

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Solution

The fourth proportional to 175,243, 263,413.20 and 115,654.39 is: 173,843.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    175,243 : 263,413.20 = 115,654.39 : x
  2. Step 2: Convert to fraction form
    175,243/263,413.20 = 115,654.39/x
  3. Step 3: Cross multiply
    175,243x = 263,413.20 × 115,654.39
  4. Step 4: Simplify right side
    175,243x = 30,464,892,963.95
  5. Step 5: Solve for x
    x = 30,464,892,963.95/175,243
  6. Step 6: Final answer
    x = 173,843.71

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1.5x scale

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.