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Finding the Fourth Proportional to 258,687.03, 356,888.91 and 190,865.73

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Solution

The fourth proportional to 258,687.03, 356,888.91 and 190,865.73 is: 263,321.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,687.03 : 356,888.91 = 190,865.73 : x
  2. Step 2: Convert to fraction form
    258,687.03/356,888.91 = 190,865.73/x
  3. Step 3: Cross multiply
    258,687.03x = 356,888.91 × 190,865.73
  4. Step 4: Simplify right side
    258,687.03x = 68,117,862,336.05
  5. Step 5: Solve for x
    x = 68,117,862,336.05/258,687.03
  6. Step 6: Final answer
    x = 263,321.52

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1.5x scale

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.