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Finding the Fourth Proportional to 303,621.40, 419,034.45 and 176,297.02

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Solution

The fourth proportional to 303,621.40, 419,034.45 and 176,297.02 is: 243,311.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,621.40 : 419,034.45 = 176,297.02 : x
  2. Step 2: Convert to fraction form
    303,621.40/419,034.45 = 176,297.02/x
  3. Step 3: Cross multiply
    303,621.40x = 419,034.45 × 176,297.02
  4. Step 4: Simplify right side
    303,621.40x = 73,874,524,812.34
  5. Step 5: Solve for x
    x = 73,874,524,812.34/303,621.40
  6. Step 6: Final answer
    x = 243,311.32

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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.