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Finding the Fourth Proportional to 123,039.20, 184,299.60 and 123,039.20

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Solution

The fourth proportional to 123,039.20, 184,299.60 and 123,039.20 is: 184,299.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,039.20 : 184,299.60 = 123,039.20 : x
  2. Step 2: Convert to fraction form
    123,039.20/184,299.60 = 123,039.20/x
  3. Step 3: Cross multiply
    123,039.20x = 184,299.60 × 123,039.20
  4. Step 4: Simplify right side
    123,039.20x = 22,676,075,344.32
  5. Step 5: Solve for x
    x = 22,676,075,344.32/123,039.20
  6. Step 6: Final answer
    x = 184,299.60

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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.