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Finding the Fourth Proportional to 133,558.80, 184,305.43 and 73,128.34

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Solution

The fourth proportional to 133,558.80, 184,305.43 and 73,128.34 is: 100,913.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,558.80 : 184,305.43 = 73,128.34 : x
  2. Step 2: Convert to fraction form
    133,558.80/184,305.43 = 73,128.34/x
  3. Step 3: Cross multiply
    133,558.80x = 184,305.43 × 73,128.34
  4. Step 4: Simplify right side
    133,558.80x = 13,477,950,148.89
  5. Step 5: Solve for x
    x = 13,477,950,148.89/133,558.80
  6. Step 6: Final answer
    x = 100,913.98

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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.