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Finding the Fourth Proportional to 122,456.64, 183,684.60 and 43,573.92

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Solution

The fourth proportional to 122,456.64, 183,684.60 and 43,573.92 is: 65,360.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,456.64 : 183,684.60 = 43,573.92 : x
  2. Step 2: Convert to fraction form
    122,456.64/183,684.60 = 43,573.92/x
  3. Step 3: Cross multiply
    122,456.64x = 183,684.60 × 43,573.92
  4. Step 4: Simplify right side
    122,456.64x = 8,003,858,065.63
  5. Step 5: Solve for x
    x = 8,003,858,065.63/122,456.64
  6. Step 6: Final answer
    x = 65,360.75

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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.