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Finding the Fourth Proportional to 180,057.72, 270,099.72 and 61,728.06

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Solution

The fourth proportional to 180,057.72, 270,099.72 and 61,728.06 is: 92,596.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,057.72 : 270,099.72 = 61,728.06 : x
  2. Step 2: Convert to fraction form
    180,057.72/270,099.72 = 61,728.06/x
  3. Step 3: Cross multiply
    180,057.72x = 270,099.72 × 61,728.06
  4. Step 4: Simplify right side
    180,057.72x = 16,672,731,722.14
  5. Step 5: Solve for x
    x = 16,672,731,722.14/180,057.72
  6. Step 6: Final answer
    x = 92,596.59

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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.