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Finding the Fourth Proportional to 73,246.94, 109,874.70 and 28,268.54

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Solution

The fourth proportional to 73,246.94, 109,874.70 and 28,268.54 is: 42,404.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,246.94 : 109,874.70 = 28,268.54 : x
  2. Step 2: Convert to fraction form
    73,246.94/109,874.70 = 28,268.54/x
  3. Step 3: Cross multiply
    73,246.94x = 109,874.70 × 28,268.54
  4. Step 4: Simplify right side
    73,246.94x = 3,105,996,802.56
  5. Step 5: Solve for x
    x = 3,105,996,802.56/73,246.94
  6. Step 6: Final answer
    x = 42,404.46

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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.