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Finding the Fourth Proportional to 70,544.93, 105,823.53 and 23,145.80

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Solution

The fourth proportional to 70,544.93, 105,823.53 and 23,145.80 is: 34,720.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,544.93 : 105,823.53 = 23,145.80 : x
  2. Step 2: Convert to fraction form
    70,544.93/105,823.53 = 23,145.80/x
  3. Step 3: Cross multiply
    70,544.93x = 105,823.53 × 23,145.80
  4. Step 4: Simplify right side
    70,544.93x = 2,449,370,260.67
  5. Step 5: Solve for x
    x = 2,449,370,260.67/70,544.93
  6. Step 6: Final answer
    x = 34,720.71

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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.