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Finding the Fourth Proportional to 123,176.70, 184,419.45 and 119,720.70

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Solution

The fourth proportional to 123,176.70, 184,419.45 and 119,720.70 is: 179,245.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,176.70 : 184,419.45 = 119,720.70 : x
  2. Step 2: Convert to fraction form
    123,176.70/184,419.45 = 119,720.70/x
  3. Step 3: Cross multiply
    123,176.70x = 184,419.45 × 119,720.70
  4. Step 4: Simplify right side
    123,176.70x = 22,078,825,647.62
  5. Step 5: Solve for x
    x = 22,078,825,647.62/123,176.70
  6. Step 6: Final answer
    x = 179,245.15

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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.