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Finding the Fourth Proportional to 122,981.66, 184,409.16 and 56,364.73

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Solution

The fourth proportional to 122,981.66, 184,409.16 and 56,364.73 is: 84,518.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,981.66 : 184,409.16 = 56,364.73 : x
  2. Step 2: Convert to fraction form
    122,981.66/184,409.16 = 56,364.73/x
  3. Step 3: Cross multiply
    122,981.66x = 184,409.16 × 56,364.73
  4. Step 4: Simplify right side
    122,981.66x = 10,394,171,840.54
  5. Step 5: Solve for x
    x = 10,394,171,840.54/122,981.66
  6. Step 6: Final answer
    x = 84,518.07

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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.