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Finding the Fourth Proportional to 351,310.60, 484,808.91 and 190,165.15

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Solution

The fourth proportional to 351,310.60, 484,808.91 and 190,165.15 is: 262,428.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,310.60 : 484,808.91 = 190,165.15 : x
  2. Step 2: Convert to fraction form
    351,310.60/484,808.91 = 190,165.15/x
  3. Step 3: Cross multiply
    351,310.60x = 484,808.91 × 190,165.15
  4. Step 4: Simplify right side
    351,310.60x = 92,193,756,667.44
  5. Step 5: Solve for x
    x = 92,193,756,667.44/351,310.60
  6. Step 6: Final answer
    x = 262,428.06

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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.