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Finding the Fourth Proportional to 184,911.20, 276,664.80 and 122,703.20

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Solution

The fourth proportional to 184,911.20, 276,664.80 and 122,703.20 is: 183,588.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    184,911.20 : 276,664.80 = 122,703.20 : x
  2. Step 2: Convert to fraction form
    184,911.20/276,664.80 = 122,703.20/x
  3. Step 3: Cross multiply
    184,911.20x = 276,664.80 × 122,703.20
  4. Step 4: Simplify right side
    184,911.20x = 33,947,656,287.36
  5. Step 5: Solve for x
    x = 33,947,656,287.36/184,911.20
  6. Step 6: Final answer
    x = 183,588.97

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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.