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Finding the Fourth Proportional to 122,806.39, 184,209.59 and 43,915.83

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Solution

The fourth proportional to 122,806.39, 184,209.59 and 43,915.83 is: 65,873.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,806.39 : 184,209.59 = 43,915.83 : x
  2. Step 2: Convert to fraction form
    122,806.39/184,209.59 = 43,915.83/x
  3. Step 3: Cross multiply
    122,806.39x = 184,209.59 × 43,915.83
  4. Step 4: Simplify right side
    122,806.39x = 8,089,717,038.81
  5. Step 5: Solve for x
    x = 8,089,717,038.81/122,806.39
  6. Step 6: Final answer
    x = 65,873.75

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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.