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Finding the Fourth Proportional to 180,612.75, 270,930.66 and 60,664.84

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Solution

The fourth proportional to 180,612.75, 270,930.66 and 60,664.84 is: 91,001.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,612.75 : 270,930.66 = 60,664.84 : x
  2. Step 2: Convert to fraction form
    180,612.75/270,930.66 = 60,664.84/x
  3. Step 3: Cross multiply
    180,612.75x = 270,930.66 × 60,664.84
  4. Step 4: Simplify right side
    180,612.75x = 16,435,965,139.99
  5. Step 5: Solve for x
    x = 16,435,965,139.99/180,612.75
  6. Step 6: Final answer
    x = 91,001.14

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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.