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Finding the Fourth Proportional to 122,976.92, 184,484.79 and 43,037.21

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Solution

The fourth proportional to 122,976.92, 184,484.79 and 43,037.21 is: 64,562.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,976.92 : 184,484.79 = 43,037.21 : x
  2. Step 2: Convert to fraction form
    122,976.92/184,484.79 = 43,037.21/x
  3. Step 3: Cross multiply
    122,976.92x = 184,484.79 × 43,037.21
  4. Step 4: Simplify right side
    122,976.92x = 7,939,709,726.61
  5. Step 5: Solve for x
    x = 7,939,709,726.61/122,976.92
  6. Step 6: Final answer
    x = 64,562.60

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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.