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Finding the Fourth Proportional to 225,999.18, 311,856.17 and 135,352.83

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Solution

The fourth proportional to 225,999.18, 311,856.17 and 135,352.83 is: 186,773.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,999.18 : 311,856.17 = 135,352.83 : x
  2. Step 2: Convert to fraction form
    225,999.18/311,856.17 = 135,352.83/x
  3. Step 3: Cross multiply
    225,999.18x = 311,856.17 × 135,352.83
  4. Step 4: Simplify right side
    225,999.18x = 42,210,614,485.70
  5. Step 5: Solve for x
    x = 42,210,614,485.70/225,999.18
  6. Step 6: Final answer
    x = 186,773.31

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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.