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Finding the Fourth Proportional to 105,073.80, 157,620.60 and 41,878.68

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Solution

The fourth proportional to 105,073.80, 157,620.60 and 41,878.68 is: 62,821.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,073.80 : 157,620.60 = 41,878.68 : x
  2. Step 2: Convert to fraction form
    105,073.80/157,620.60 = 41,878.68/x
  3. Step 3: Cross multiply
    105,073.80x = 157,620.60 × 41,878.68
  4. Step 4: Simplify right side
    105,073.80x = 6,600,942,668.81
  5. Step 5: Solve for x
    x = 6,600,942,668.81/105,073.80
  6. Step 6: Final answer
    x = 62,821.97

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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.