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Finding the Fourth Proportional to 403,910.36, 605,880.91 and 151,164.23

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Solution

The fourth proportional to 403,910.36, 605,880.91 and 151,164.23 is: 226,752.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,910.36 : 605,880.91 = 151,164.23 : x
  2. Step 2: Convert to fraction form
    403,910.36/605,880.91 = 151,164.23/x
  3. Step 3: Cross multiply
    403,910.36x = 605,880.91 × 151,164.23
  4. Step 4: Simplify right side
    403,910.36x = 91,587,523,503.52
  5. Step 5: Solve for x
    x = 91,587,523,503.52/403,910.36
  6. Step 6: Final answer
    x = 226,752.11

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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.