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Finding the Fourth Proportional to 123,149.40, 184,697.60 and 38,916.04

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Solution

The fourth proportional to 123,149.40, 184,697.60 and 38,916.04 is: 58,365.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,149.40 : 184,697.60 = 38,916.04 : x
  2. Step 2: Convert to fraction form
    123,149.40/184,697.60 = 38,916.04/x
  3. Step 3: Cross multiply
    123,149.40x = 184,697.60 × 38,916.04
  4. Step 4: Simplify right side
    123,149.40x = 7,187,699,189.50
  5. Step 5: Solve for x
    x = 7,187,699,189.50/123,149.40
  6. Step 6: Final answer
    x = 58,365.69

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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.