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Finding the Fourth Proportional to 133,405.22, 184,100.67 and 72,975.87

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Solution

The fourth proportional to 133,405.22, 184,100.67 and 72,975.87 is: 100,707.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,405.22 : 184,100.67 = 72,975.87 : x
  2. Step 2: Convert to fraction form
    133,405.22/184,100.67 = 72,975.87/x
  3. Step 3: Cross multiply
    133,405.22x = 184,100.67 × 72,975.87
  4. Step 4: Simplify right side
    133,405.22x = 13,434,905,951.83
  5. Step 5: Solve for x
    x = 13,434,905,951.83/133,405.22
  6. Step 6: Final answer
    x = 100,707.50

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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.