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Finding the Fourth Proportional to 351,084.51, 484,495.38 and 189,939.60

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Solution

The fourth proportional to 351,084.51, 484,495.38 and 189,939.60 is: 262,115.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,084.51 : 484,495.38 = 189,939.60 : x
  2. Step 2: Convert to fraction form
    351,084.51/484,495.38 = 189,939.60/x
  3. Step 3: Cross multiply
    351,084.51x = 484,495.38 × 189,939.60
  4. Step 4: Simplify right side
    351,084.51x = 92,024,858,679.05
  5. Step 5: Solve for x
    x = 92,024,858,679.05/351,084.51
  6. Step 6: Final answer
    x = 262,115.98

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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.