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Finding the Fourth Proportional to 123,274.60, 184,911.90 and 83,908.60

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Solution

The fourth proportional to 123,274.60, 184,911.90 and 83,908.60 is: 125,862.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,274.60 : 184,911.90 = 83,908.60 : x
  2. Step 2: Convert to fraction form
    123,274.60/184,911.90 = 83,908.60/x
  3. Step 3: Cross multiply
    123,274.60x = 184,911.90 × 83,908.60
  4. Step 4: Simplify right side
    123,274.60x = 15,515,698,652.34
  5. Step 5: Solve for x
    x = 15,515,698,652.34/123,274.60
  6. Step 6: Final answer
    x = 125,862.90

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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.