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Finding the Fourth Proportional to 251,112.40, 376,668.60 and 144,824.20

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Solution

The fourth proportional to 251,112.40, 376,668.60 and 144,824.20 is: 217,236.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,112.40 : 376,668.60 = 144,824.20 : x
  2. Step 2: Convert to fraction form
    251,112.40/376,668.60 = 144,824.20/x
  3. Step 3: Cross multiply
    251,112.40x = 376,668.60 × 144,824.20
  4. Step 4: Simplify right side
    251,112.40x = 54,550,728,660.12
  5. Step 5: Solve for x
    x = 54,550,728,660.12/251,112.40
  6. Step 6: Final answer
    x = 217,236.30

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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.