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Finding the Fourth Proportional to 133,392.15, 184,074.30 and 72,951.03

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Solution

The fourth proportional to 133,392.15, 184,074.30 and 72,951.03 is: 100,668.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,392.15 : 184,074.30 = 72,951.03 : x
  2. Step 2: Convert to fraction form
    133,392.15/184,074.30 = 72,951.03/x
  3. Step 3: Cross multiply
    133,392.15x = 184,074.30 × 72,951.03
  4. Step 4: Simplify right side
    133,392.15x = 13,428,409,781.53
  5. Step 5: Solve for x
    x = 13,428,409,781.53/133,392.15
  6. Step 6: Final answer
    x = 100,668.67

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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.