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Finding the Fourth Proportional to 303,975.18, 419,472.72 and 168,002.10

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Solution

The fourth proportional to 303,975.18, 419,472.72 and 168,002.10 is: 231,835.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,975.18 : 419,472.72 = 168,002.10 : x
  2. Step 2: Convert to fraction form
    303,975.18/419,472.72 = 168,002.10/x
  3. Step 3: Cross multiply
    303,975.18x = 419,472.72 × 168,002.10
  4. Step 4: Simplify right side
    303,975.18x = 70,472,297,852.71
  5. Step 5: Solve for x
    x = 70,472,297,852.71/303,975.18
  6. Step 6: Final answer
    x = 231,835.70

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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.