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Finding the Fourth Proportional to 49,906.60, 74,946.30 and 48,351.40

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Solution

The fourth proportional to 49,906.60, 74,946.30 and 48,351.40 is: 72,610.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,906.60 : 74,946.30 = 48,351.40 : x
  2. Step 2: Convert to fraction form
    49,906.60/74,946.30 = 48,351.40/x
  3. Step 3: Cross multiply
    49,906.60x = 74,946.30 × 48,351.40
  4. Step 4: Simplify right side
    49,906.60x = 3,623,758,529.82
  5. Step 5: Solve for x
    x = 3,623,758,529.82/49,906.60
  6. Step 6: Final answer
    x = 72,610.81

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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.