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Finding the Fourth Proportional to 234,313.20, 351,498.60 and 76,498.80

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Solution

The fourth proportional to 234,313.20, 351,498.60 and 76,498.80 is: 114,757.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,313.20 : 351,498.60 = 76,498.80 : x
  2. Step 2: Convert to fraction form
    234,313.20/351,498.60 = 76,498.80/x
  3. Step 3: Cross multiply
    234,313.20x = 351,498.60 × 76,498.80
  4. Step 4: Simplify right side
    234,313.20x = 26,889,221,101.68
  5. Step 5: Solve for x
    x = 26,889,221,101.68/234,313.20
  6. Step 6: Final answer
    x = 114,757.60

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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.