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Finding the Fourth Proportional to 122,996.98, 184,521.39 and 39,884.50

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Solution

The fourth proportional to 122,996.98, 184,521.39 and 39,884.50 is: 59,835.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,996.98 : 184,521.39 = 39,884.50 : x
  2. Step 2: Convert to fraction form
    122,996.98/184,521.39 = 39,884.50/x
  3. Step 3: Cross multiply
    122,996.98x = 184,521.39 × 39,884.50
  4. Step 4: Simplify right side
    122,996.98x = 7,359,543,379.46
  5. Step 5: Solve for x
    x = 7,359,543,379.46/122,996.98
  6. Step 6: Final answer
    x = 59,835.16

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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.