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Finding the Fourth Proportional to 184,043.40, 276,129.90 and 78,894.60

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Solution

The fourth proportional to 184,043.40, 276,129.90 and 78,894.60 is: 118,369.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    184,043.40 : 276,129.90 = 78,894.60 : x
  2. Step 2: Convert to fraction form
    184,043.40/276,129.90 = 78,894.60/x
  3. Step 3: Cross multiply
    184,043.40x = 276,129.90 × 78,894.60
  4. Step 4: Simplify right side
    184,043.40x = 21,785,158,008.54
  5. Step 5: Solve for x
    x = 21,785,158,008.54/184,043.40
  6. Step 6: Final answer
    x = 118,369.68

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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.