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Finding the Fourth Proportional to 251,783.54, 347,450.44 and 137,062.38

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Solution

The fourth proportional to 251,783.54, 347,450.44 and 137,062.38 is: 189,140.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,783.54 : 347,450.44 = 137,062.38 : x
  2. Step 2: Convert to fraction form
    251,783.54/347,450.44 = 137,062.38/x
  3. Step 3: Cross multiply
    251,783.54x = 347,450.44 × 137,062.38
  4. Step 4: Simplify right side
    251,783.54x = 47,622,384,238.45
  5. Step 5: Solve for x
    x = 47,622,384,238.45/251,783.54
  6. Step 6: Final answer
    x = 189,140.18

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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.