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Finding the Fourth Proportional to 224,466.46, 309,816.90 and 129,028.61

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Solution

The fourth proportional to 224,466.46, 309,816.90 and 129,028.61 is: 178,090.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,466.46 : 309,816.90 = 129,028.61 : x
  2. Step 2: Convert to fraction form
    224,466.46/309,816.90 = 129,028.61/x
  3. Step 3: Cross multiply
    224,466.46x = 309,816.90 × 129,028.61
  4. Step 4: Simplify right side
    224,466.46x = 39,975,244,736.05
  5. Step 5: Solve for x
    x = 39,975,244,736.05/224,466.46
  6. Step 6: Final answer
    x = 178,090.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.