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Finding the Fourth Proportional to 174,272.20, 261,408.30 and 155,245.30

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Solution

The fourth proportional to 174,272.20, 261,408.30 and 155,245.30 is: 232,867.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,272.20 : 261,408.30 = 155,245.30 : x
  2. Step 2: Convert to fraction form
    174,272.20/261,408.30 = 155,245.30/x
  3. Step 3: Cross multiply
    174,272.20x = 261,408.30 × 155,245.30
  4. Step 4: Simplify right side
    174,272.20x = 40,582,409,955.99
  5. Step 5: Solve for x
    x = 40,582,409,955.99/174,272.20
  6. Step 6: Final answer
    x = 232,867.95

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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.