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Finding the Fourth Proportional to 122,960.60, 184,440.90 and 76,304.60

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Solution

The fourth proportional to 122,960.60, 184,440.90 and 76,304.60 is: 114,456.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,960.60 : 184,440.90 = 76,304.60 : x
  2. Step 2: Convert to fraction form
    122,960.60/184,440.90 = 76,304.60/x
  3. Step 3: Cross multiply
    122,960.60x = 184,440.90 × 76,304.60
  4. Step 4: Simplify right side
    122,960.60x = 14,073,689,098.14
  5. Step 5: Solve for x
    x = 14,073,689,098.14/122,960.60
  6. Step 6: Final answer
    x = 114,456.90

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1.5x scale

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.