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Finding the Fourth Proportional to 67,158, 100,736.40 and 25,036.65

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Solution

The fourth proportional to 67,158, 100,736.40 and 25,036.65 is: 37,554.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,158 : 100,736.40 = 25,036.65 : x
  2. Step 2: Convert to fraction form
    67,158/100,736.40 = 25,036.65/x
  3. Step 3: Cross multiply
    67,158x = 100,736.40 × 25,036.65
  4. Step 4: Simplify right side
    67,158x = 2,522,101,989.06
  5. Step 5: Solve for x
    x = 2,522,101,989.06/67,158
  6. Step 6: Final answer
    x = 37,554.75

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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.