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Finding the Fourth Proportional to 133,987.57, 184,911.81 and 88,587.49

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Solution

The fourth proportional to 133,987.57, 184,911.81 and 88,587.49 is: 122,256.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,987.57 : 184,911.81 = 88,587.49 : x
  2. Step 2: Convert to fraction form
    133,987.57/184,911.81 = 88,587.49/x
  3. Step 3: Cross multiply
    133,987.57x = 184,911.81 × 88,587.49
  4. Step 4: Simplify right side
    133,987.57x = 16,380,873,169.79
  5. Step 5: Solve for x
    x = 16,380,873,169.79/133,987.57
  6. Step 6: Final answer
    x = 122,256.67

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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.