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Finding the Fourth Proportional to 133,620.54, 184,420.12 and 79,911.48

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Solution

The fourth proportional to 133,620.54, 184,420.12 and 79,911.48 is: 110,292.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,620.54 : 184,420.12 = 79,911.48 : x
  2. Step 2: Convert to fraction form
    133,620.54/184,420.12 = 79,911.48/x
  3. Step 3: Cross multiply
    133,620.54x = 184,420.12 × 79,911.48
  4. Step 4: Simplify right side
    133,620.54x = 14,737,284,730.98
  5. Step 5: Solve for x
    x = 14,737,284,730.98/133,620.54
  6. Step 6: Final answer
    x = 110,292.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.