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Finding the Fourth Proportional to 122,981.70, 184,472.55 and 110,928.90

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Solution

The fourth proportional to 122,981.70, 184,472.55 and 110,928.90 is: 166,393.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,981.70 : 184,472.55 = 110,928.90 : x
  2. Step 2: Convert to fraction form
    122,981.70/184,472.55 = 110,928.90/x
  3. Step 3: Cross multiply
    122,981.70x = 184,472.55 × 110,928.90
  4. Step 4: Simplify right side
    122,981.70x = 20,463,337,051.70
  5. Step 5: Solve for x
    x = 20,463,337,051.70/122,981.70
  6. Step 6: Final answer
    x = 166,393.35

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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.