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Finding the Fourth Proportional to 123,644.90, 185,463.87 and 39,410.11

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Solution

The fourth proportional to 123,644.90, 185,463.87 and 39,410.11 is: 59,114.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,644.90 : 185,463.87 = 39,410.11 : x
  2. Step 2: Convert to fraction form
    123,644.90/185,463.87 = 39,410.11/x
  3. Step 3: Cross multiply
    123,644.90x = 185,463.87 × 39,410.11
  4. Step 4: Simplify right side
    123,644.90x = 7,309,150,930.18
  5. Step 5: Solve for x
    x = 7,309,150,930.18/123,644.90
  6. Step 6: Final answer
    x = 59,114.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.