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Finding the Fourth Proportional to 123,338.80, 184,943.40 and 44,441.20

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Solution

The fourth proportional to 123,338.80, 184,943.40 and 44,441.20 is: 66,638.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,338.80 : 184,943.40 = 44,441.20 : x
  2. Step 2: Convert to fraction form
    123,338.80/184,943.40 = 44,441.20/x
  3. Step 3: Cross multiply
    123,338.80x = 184,943.40 × 44,441.20
  4. Step 4: Simplify right side
    123,338.80x = 8,219,106,628.08
  5. Step 5: Solve for x
    x = 8,219,106,628.08/123,338.80
  6. Step 6: Final answer
    x = 66,638.45

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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.