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Finding the Fourth Proportional to 248,083.25, 342,344.54 and 140,660.54

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Solution

The fourth proportional to 248,083.25, 342,344.54 and 140,660.54 is: 194,105.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,083.25 : 342,344.54 = 140,660.54 : x
  2. Step 2: Convert to fraction form
    248,083.25/342,344.54 = 140,660.54/x
  3. Step 3: Cross multiply
    248,083.25x = 342,344.54 × 140,660.54
  4. Step 4: Simplify right side
    248,083.25x = 48,154,367,862.45
  5. Step 5: Solve for x
    x = 48,154,367,862.45/248,083.25
  6. Step 6: Final answer
    x = 194,105.68

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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.