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Finding the Fourth Proportional to 123,314.97, 184,973.88 and 43,355.28

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Solution

The fourth proportional to 123,314.97, 184,973.88 and 43,355.28 is: 65,033.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,314.97 : 184,973.88 = 43,355.28 : x
  2. Step 2: Convert to fraction form
    123,314.97/184,973.88 = 43,355.28/x
  3. Step 3: Cross multiply
    123,314.97x = 184,973.88 × 43,355.28
  4. Step 4: Simplify right side
    123,314.97x = 8,019,594,360.09
  5. Step 5: Solve for x
    x = 8,019,594,360.09/123,314.97
  6. Step 6: Final answer
    x = 65,033.42

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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.