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Finding the Fourth Proportional to 260,856.67, 391,418.45 and 124,234.45

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Solution

The fourth proportional to 260,856.67, 391,418.45 and 124,234.45 is: 186,415.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,856.67 : 391,418.45 = 124,234.45 : x
  2. Step 2: Convert to fraction form
    260,856.67/391,418.45 = 124,234.45/x
  3. Step 3: Cross multiply
    260,856.67x = 391,418.45 × 124,234.45
  4. Step 4: Simplify right side
    260,856.67x = 48,627,655,855.60
  5. Step 5: Solve for x
    x = 48,627,655,855.60/260,856.67
  6. Step 6: Final answer
    x = 186,415.23

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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.