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Finding the Fourth Proportional to 133,999.92, 184,906.80 and 77,410.08

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Solution

The fourth proportional to 133,999.92, 184,906.80 and 77,410.08 is: 106,818.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,999.92 : 184,906.80 = 77,410.08 : x
  2. Step 2: Convert to fraction form
    133,999.92/184,906.80 = 77,410.08/x
  3. Step 3: Cross multiply
    133,999.92x = 184,906.80 × 77,410.08
  4. Step 4: Simplify right side
    133,999.92x = 14,313,650,180.54
  5. Step 5: Solve for x
    x = 14,313,650,180.54/133,999.92
  6. Step 6: Final answer
    x = 106,818.35

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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.