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Finding the Fourth Proportional to 202,356.20, 303,619.35 and 108,752.60

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Solution

The fourth proportional to 202,356.20, 303,619.35 and 108,752.60 is: 163,174.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,356.20 : 303,619.35 = 108,752.60 : x
  2. Step 2: Convert to fraction form
    202,356.20/303,619.35 = 108,752.60/x
  3. Step 3: Cross multiply
    202,356.20x = 303,619.35 × 108,752.60
  4. Step 4: Simplify right side
    202,356.20x = 33,019,393,722.81
  5. Step 5: Solve for x
    x = 33,019,393,722.81/202,356.20
  6. Step 6: Final answer
    x = 163,174.61

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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.