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Finding the Fourth Proportional to 115,172.48, 158,883.72 and 67,396.52

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Solution

The fourth proportional to 115,172.48, 158,883.72 and 67,396.52 is: 92,975.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,172.48 : 158,883.72 = 67,396.52 : x
  2. Step 2: Convert to fraction form
    115,172.48/158,883.72 = 67,396.52/x
  3. Step 3: Cross multiply
    115,172.48x = 158,883.72 × 67,396.52
  4. Step 4: Simplify right side
    115,172.48x = 10,708,209,812.65
  5. Step 5: Solve for x
    x = 10,708,209,812.65/115,172.48
  6. Step 6: Final answer
    x = 92,975.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.