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Finding the Fourth Proportional to 122,342.72, 183,532.32 and 43,450.32

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Solution

The fourth proportional to 122,342.72, 183,532.32 and 43,450.32 is: 65,181.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,342.72 : 183,532.32 = 43,450.32 : x
  2. Step 2: Convert to fraction form
    122,342.72/183,532.32 = 43,450.32/x
  3. Step 3: Cross multiply
    122,342.72x = 183,532.32 × 43,450.32
  4. Step 4: Simplify right side
    122,342.72x = 7,974,538,034.34
  5. Step 5: Solve for x
    x = 7,974,538,034.34/122,342.72
  6. Step 6: Final answer
    x = 65,181.96

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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.