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Finding the Fourth Proportional to 248,874.72, 343,438.56 and 141,442.88

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Solution

The fourth proportional to 248,874.72, 343,438.56 and 141,442.88 is: 195,186.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,874.72 : 343,438.56 = 141,442.88 : x
  2. Step 2: Convert to fraction form
    248,874.72/343,438.56 = 141,442.88/x
  3. Step 3: Cross multiply
    248,874.72x = 343,438.56 × 141,442.88
  4. Step 4: Simplify right side
    248,874.72x = 48,576,939,029.45
  5. Step 5: Solve for x
    x = 48,576,939,029.45/248,874.72
  6. Step 6: Final answer
    x = 195,186.31

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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.