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Finding the Fourth Proportional to 122,059.89, 183,087.44 and 66,009.81

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Solution

The fourth proportional to 122,059.89, 183,087.44 and 66,009.81 is: 99,013.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,059.89 : 183,087.44 = 66,009.81 : x
  2. Step 2: Convert to fraction form
    122,059.89/183,087.44 = 66,009.81/x
  3. Step 3: Cross multiply
    122,059.89x = 183,087.44 × 66,009.81
  4. Step 4: Simplify right side
    122,059.89x = 12,085,567,216.92
  5. Step 5: Solve for x
    x = 12,085,567,216.92/122,059.89
  6. Step 6: Final answer
    x = 99,013.42

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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.