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Finding the Fourth Proportional to 122,979.74, 184,469.69 and 94,940.76

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Solution

The fourth proportional to 122,979.74, 184,469.69 and 94,940.76 is: 142,411.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,979.74 : 184,469.69 = 94,940.76 : x
  2. Step 2: Convert to fraction form
    122,979.74/184,469.69 = 94,940.76/x
  3. Step 3: Cross multiply
    122,979.74x = 184,469.69 × 94,940.76
  4. Step 4: Simplify right side
    122,979.74x = 17,513,691,168.51
  5. Step 5: Solve for x
    x = 17,513,691,168.51/122,979.74
  6. Step 6: Final answer
    x = 142,411.19

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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.