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Finding the Fourth Proportional to 77,274.40, 115,825.20 and 32,893.60

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Solution

The fourth proportional to 77,274.40, 115,825.20 and 32,893.60 is: 49,303.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,274.40 : 115,825.20 = 32,893.60 : x
  2. Step 2: Convert to fraction form
    77,274.40/115,825.20 = 32,893.60/x
  3. Step 3: Cross multiply
    77,274.40x = 115,825.20 × 32,893.60
  4. Step 4: Simplify right side
    77,274.40x = 3,809,907,798.72
  5. Step 5: Solve for x
    x = 3,809,907,798.72/77,274.40
  6. Step 6: Final answer
    x = 49,303.62

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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.