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Finding the Fourth Proportional to 49,988.54, 74,945.46 and 30,262.34

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Solution

The fourth proportional to 49,988.54, 74,945.46 and 30,262.34 is: 45,370.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,988.54 : 74,945.46 = 30,262.34 : x
  2. Step 2: Convert to fraction form
    49,988.54/74,945.46 = 30,262.34/x
  3. Step 3: Cross multiply
    49,988.54x = 74,945.46 × 30,262.34
  4. Step 4: Simplify right side
    49,988.54x = 2,268,024,991.98
  5. Step 5: Solve for x
    x = 2,268,024,991.98/49,988.54
  6. Step 6: Final answer
    x = 45,370.90

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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.