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Finding the Fourth Proportional to 403,105.07, 604,745.08 and 122,615.03

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Solution

The fourth proportional to 403,105.07, 604,745.08 and 122,615.03 is: 183,949.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,105.07 : 604,745.08 = 122,615.03 : x
  2. Step 2: Convert to fraction form
    403,105.07/604,745.08 = 122,615.03/x
  3. Step 3: Cross multiply
    403,105.07x = 604,745.08 × 122,615.03
  4. Step 4: Simplify right side
    403,105.07x = 74,150,832,489.75
  5. Step 5: Solve for x
    x = 74,150,832,489.75/403,105.07
  6. Step 6: Final answer
    x = 183,949.15

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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.