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Finding the Fourth Proportional to 403,469.36, 605,301.24 and 122,969.36

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Solution

The fourth proportional to 403,469.36, 605,301.24 and 122,969.36 is: 184,483.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,469.36 : 605,301.24 = 122,969.36 : x
  2. Step 2: Convert to fraction form
    403,469.36/605,301.24 = 122,969.36/x
  3. Step 3: Cross multiply
    403,469.36x = 605,301.24 × 122,969.36
  4. Step 4: Simplify right side
    403,469.36x = 74,433,506,090.01
  5. Step 5: Solve for x
    x = 74,433,506,090.01/403,469.36
  6. Step 6: Final answer
    x = 184,483.66

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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.