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Finding the Fourth Proportional to 304,120.53, 419,678.90 and 168,151.02

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Solution

The fourth proportional to 304,120.53, 419,678.90 and 168,151.02 is: 232,044.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,120.53 : 419,678.90 = 168,151.02 : x
  2. Step 2: Convert to fraction form
    304,120.53/419,678.90 = 168,151.02/x
  3. Step 3: Cross multiply
    304,120.53x = 419,678.90 × 168,151.02
  4. Step 4: Simplify right side
    304,120.53x = 70,569,435,107.48
  5. Step 5: Solve for x
    x = 70,569,435,107.48/304,120.53
  6. Step 6: Final answer
    x = 232,044.30

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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.