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Finding the Fourth Proportional to 225,892.59, 311,708.67 and 135,246.19

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Solution

The fourth proportional to 225,892.59, 311,708.67 and 135,246.19 is: 186,625.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,892.59 : 311,708.67 = 135,246.19 : x
  2. Step 2: Convert to fraction form
    225,892.59/311,708.67 = 135,246.19/x
  3. Step 3: Cross multiply
    225,892.59x = 311,708.67 × 135,246.19
  4. Step 4: Simplify right side
    225,892.59x = 42,157,410,007.47
  5. Step 5: Solve for x
    x = 42,157,410,007.47/225,892.59
  6. Step 6: Final answer
    x = 186,625.91

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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.