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Finding the Fourth Proportional to 122,636.64, 184,006.80 and 52,548.96

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Solution

The fourth proportional to 122,636.64, 184,006.80 and 52,548.96 is: 78,845.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,636.64 : 184,006.80 = 52,548.96 : x
  2. Step 2: Convert to fraction form
    122,636.64/184,006.80 = 52,548.96/x
  3. Step 3: Cross multiply
    122,636.64x = 184,006.80 × 52,548.96
  4. Step 4: Simplify right side
    122,636.64x = 9,669,365,972.93
  5. Step 5: Solve for x
    x = 9,669,365,972.93/122,636.64
  6. Step 6: Final answer
    x = 78,845.65

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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.