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Finding the Fourth Proportional to 158,891.90, 238,222.35 and 74,608.70

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Solution

The fourth proportional to 158,891.90, 238,222.35 and 74,608.70 is: 111,858.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,891.90 : 238,222.35 = 74,608.70 : x
  2. Step 2: Convert to fraction form
    158,891.90/238,222.35 = 74,608.70/x
  3. Step 3: Cross multiply
    158,891.90x = 238,222.35 × 74,608.70
  4. Step 4: Simplify right side
    158,891.90x = 17,773,458,653.33
  5. Step 5: Solve for x
    x = 17,773,458,653.33/158,891.90
  6. Step 6: Final answer
    x = 111,858.81

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1.5x scale

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.