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Finding the Fourth Proportional to 122,679.42, 184,019.04 and 39,573.42

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Solution

The fourth proportional to 122,679.42, 184,019.04 and 39,573.42 is: 59,360.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,679.42 : 184,019.04 = 39,573.42 : x
  2. Step 2: Convert to fraction form
    122,679.42/184,019.04 = 39,573.42/x
  3. Step 3: Cross multiply
    122,679.42x = 184,019.04 × 39,573.42
  4. Step 4: Simplify right side
    122,679.42x = 7,282,262,757.92
  5. Step 5: Solve for x
    x = 7,282,262,757.92/122,679.42
  6. Step 6: Final answer
    x = 59,360.10

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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.