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Finding the Fourth Proportional to 260,855.67, 391,416.95 and 124,233.45

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Solution

The fourth proportional to 260,855.67, 391,416.95 and 124,233.45 is: 186,413.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,855.67 : 391,416.95 = 124,233.45 : x
  2. Step 2: Convert to fraction form
    260,855.67/391,416.95 = 124,233.45/x
  3. Step 3: Cross multiply
    260,855.67x = 391,416.95 × 124,233.45
  4. Step 4: Simplify right side
    260,855.67x = 48,627,078,086.98
  5. Step 5: Solve for x
    x = 48,627,078,086.98/260,855.67
  6. Step 6: Final answer
    x = 186,413.73

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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.