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Finding the Fourth Proportional to 122,992.90, 184,489.35 and 60,784.90

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Solution

The fourth proportional to 122,992.90, 184,489.35 and 60,784.90 is: 91,177.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,992.90 : 184,489.35 = 60,784.90 : x
  2. Step 2: Convert to fraction form
    122,992.90/184,489.35 = 60,784.90/x
  3. Step 3: Cross multiply
    122,992.90x = 184,489.35 × 60,784.90
  4. Step 4: Simplify right side
    122,992.90x = 11,214,166,690.82
  5. Step 5: Solve for x
    x = 11,214,166,690.82/122,992.90
  6. Step 6: Final answer
    x = 91,177.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.