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Finding the Fourth Proportional to 351,666.44, 485,299.80 and 190,522.60

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Solution

The fourth proportional to 351,666.44, 485,299.80 and 190,522.60 is: 262,921.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,666.44 : 485,299.80 = 190,522.60 : x
  2. Step 2: Convert to fraction form
    351,666.44/485,299.80 = 190,522.60/x
  3. Step 3: Cross multiply
    351,666.44x = 485,299.80 × 190,522.60
  4. Step 4: Simplify right side
    351,666.44x = 92,460,579,675.48
  5. Step 5: Solve for x
    x = 92,460,579,675.48/351,666.44
  6. Step 6: Final answer
    x = 262,921.25

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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.