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Finding the Fourth Proportional to 133,452.85, 184,060.92 and 85,710.64

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Solution

The fourth proportional to 133,452.85, 184,060.92 and 85,710.64 is: 118,213.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,452.85 : 184,060.92 = 85,710.64 : x
  2. Step 2: Convert to fraction form
    133,452.85/184,060.92 = 85,710.64/x
  3. Step 3: Cross multiply
    133,452.85x = 184,060.92 × 85,710.64
  4. Step 4: Simplify right side
    133,452.85x = 15,775,979,252.19
  5. Step 5: Solve for x
    x = 15,775,979,252.19/133,452.85
  6. Step 6: Final answer
    x = 118,213.88

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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.