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Finding the Fourth Proportional to 70,551.44, 105,859.56 and 30,582.62

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Solution

The fourth proportional to 70,551.44, 105,859.56 and 30,582.62 is: 45,887.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,551.44 : 105,859.56 = 30,582.62 : x
  2. Step 2: Convert to fraction form
    70,551.44/105,859.56 = 30,582.62/x
  3. Step 3: Cross multiply
    70,551.44x = 105,859.56 × 30,582.62
  4. Step 4: Simplify right side
    70,551.44x = 3,237,462,696.85
  5. Step 5: Solve for x
    x = 3,237,462,696.85/70,551.44
  6. Step 6: Final answer
    x = 45,887.97

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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.