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Finding the Fourth Proportional to 202,406.70, 303,124.05 and 108,705.90

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Solution

The fourth proportional to 202,406.70, 303,124.05 and 108,705.90 is: 162,797.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,406.70 : 303,124.05 = 108,705.90 : x
  2. Step 2: Convert to fraction form
    202,406.70/303,124.05 = 108,705.90/x
  3. Step 3: Cross multiply
    202,406.70x = 303,124.05 × 108,705.90
  4. Step 4: Simplify right side
    202,406.70x = 32,951,372,666.90
  5. Step 5: Solve for x
    x = 32,951,372,666.90/202,406.70
  6. Step 6: Final answer
    x = 162,797.84

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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.