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Finding the Fourth Proportional to 411,410.62, 617,174.96 and 127,126.00

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Solution

The fourth proportional to 411,410.62, 617,174.96 and 127,126.00 is: 190,707.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,410.62 : 617,174.96 = 127,126.00 : x
  2. Step 2: Convert to fraction form
    411,410.62/617,174.96 = 127,126.00/x
  3. Step 3: Cross multiply
    411,410.62x = 617,174.96 × 127,126.00
  4. Step 4: Simplify right side
    411,410.62x = 78,458,982,739.84
  5. Step 5: Solve for x
    x = 78,458,982,739.84/411,410.62
  6. Step 6: Final answer
    x = 190,707.24

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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.