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Finding the Fourth Proportional to 303,969.84, 419,500.10 and 168,000.86

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Solution

The fourth proportional to 303,969.84, 419,500.10 and 168,000.86 is: 231,853.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,969.84 : 419,500.10 = 168,000.86 : x
  2. Step 2: Convert to fraction form
    303,969.84/419,500.10 = 168,000.86/x
  3. Step 3: Cross multiply
    303,969.84x = 419,500.10 × 168,000.86
  4. Step 4: Simplify right side
    303,969.84x = 70,476,376,913.99
  5. Step 5: Solve for x
    x = 70,476,376,913.99/303,969.84
  6. Step 6: Final answer
    x = 231,853.19

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1.5x scale

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.