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Finding the Fourth Proportional to 105,704.39, 158,555.88 and 25,741.40

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Solution

The fourth proportional to 105,704.39, 158,555.88 and 25,741.40 is: 38,611.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,704.39 : 158,555.88 = 25,741.40 : x
  2. Step 2: Convert to fraction form
    105,704.39/158,555.88 = 25,741.40/x
  3. Step 3: Cross multiply
    105,704.39x = 158,555.88 × 25,741.40
  4. Step 4: Simplify right side
    105,704.39x = 4,081,449,536.65
  5. Step 5: Solve for x
    x = 4,081,449,536.65/105,704.39
  6. Step 6: Final answer
    x = 38,611.92

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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.