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Finding the Fourth Proportional to 303,671.13, 419,066.87 and 167,702.60

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Solution

The fourth proportional to 303,671.13, 419,066.87 and 167,702.60 is: 231,429.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,671.13 : 419,066.87 = 167,702.60 : x
  2. Step 2: Convert to fraction form
    303,671.13/419,066.87 = 167,702.60/x
  3. Step 3: Cross multiply
    303,671.13x = 419,066.87 × 167,702.60
  4. Step 4: Simplify right side
    303,671.13x = 70,278,603,882.02
  5. Step 5: Solve for x
    x = 70,278,603,882.02/303,671.13
  6. Step 6: Final answer
    x = 231,429.98

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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.