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Finding the Fourth Proportional to 202,342.20, 303,598.35 and 108,738.60

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Solution

The fourth proportional to 202,342.20, 303,598.35 and 108,738.60 is: 163,153.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,342.20 : 303,598.35 = 108,738.60 : x
  2. Step 2: Convert to fraction form
    202,342.20/303,598.35 = 108,738.60/x
  3. Step 3: Cross multiply
    202,342.20x = 303,598.35 × 108,738.60
  4. Step 4: Simplify right side
    202,342.20x = 33,012,859,541.31
  5. Step 5: Solve for x
    x = 33,012,859,541.31/202,342.20
  6. Step 6: Final answer
    x = 163,153.61

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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.