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Finding the Fourth Proportional to 303,761.60, 454,986.30 and 163,356.20

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Solution

The fourth proportional to 303,761.60, 454,986.30 and 163,356.20 is: 244,681.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,761.60 : 454,986.30 = 163,356.20 : x
  2. Step 2: Convert to fraction form
    303,761.60/454,986.30 = 163,356.20/x
  3. Step 3: Cross multiply
    303,761.60x = 454,986.30 × 163,356.20
  4. Step 4: Simplify right side
    303,761.60x = 74,324,833,020.06
  5. Step 5: Solve for x
    x = 74,324,833,020.06/303,761.60
  6. Step 6: Final answer
    x = 244,681.46

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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.