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Finding the Fourth Proportional to 122,594.88, 184,021.20 and 108,644.40

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Solution

The fourth proportional to 122,594.88, 184,021.20 and 108,644.40 is: 163,080.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,594.88 : 184,021.20 = 108,644.40 : x
  2. Step 2: Convert to fraction form
    122,594.88/184,021.20 = 108,644.40/x
  3. Step 3: Cross multiply
    122,594.88x = 184,021.20 × 108,644.40
  4. Step 4: Simplify right side
    122,594.88x = 19,992,872,861.28
  5. Step 5: Solve for x
    x = 19,992,872,861.28/122,594.88
  6. Step 6: Final answer
    x = 163,080.81

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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.