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Finding the Fourth Proportional to 123,266.88, 184,738.32 and 67,130.64

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Solution

The fourth proportional to 123,266.88, 184,738.32 and 67,130.64 is: 100,607.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,266.88 : 184,738.32 = 67,130.64 : x
  2. Step 2: Convert to fraction form
    123,266.88/184,738.32 = 67,130.64/x
  3. Step 3: Cross multiply
    123,266.88x = 184,738.32 × 67,130.64
  4. Step 4: Simplify right side
    123,266.88x = 12,401,601,654.12
  5. Step 5: Solve for x
    x = 12,401,601,654.12/123,266.88
  6. Step 6: Final answer
    x = 100,607.74

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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.