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Finding the Fourth Proportional to 251,861.90, 377,792.44 and 172,736.24

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Solution

The fourth proportional to 251,861.90, 377,792.44 and 172,736.24 is: 259,104.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,861.90 : 377,792.44 = 172,736.24 : x
  2. Step 2: Convert to fraction form
    251,861.90/377,792.44 = 172,736.24/x
  3. Step 3: Cross multiply
    251,861.90x = 377,792.44 × 172,736.24
  4. Step 4: Simplify right side
    251,861.90x = 65,258,443,265.22
  5. Step 5: Solve for x
    x = 65,258,443,265.22/251,861.90
  6. Step 6: Final answer
    x = 259,104.07

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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.