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Finding the Fourth Proportional to 258,169.37, 356,272.56 and 143,466.68

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Solution

The fourth proportional to 258,169.37, 356,272.56 and 143,466.68 is: 197,983.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,169.37 : 356,272.56 = 143,466.68 : x
  2. Step 2: Convert to fraction form
    258,169.37/356,272.56 = 143,466.68/x
  3. Step 3: Cross multiply
    258,169.37x = 356,272.56 × 143,466.68
  4. Step 4: Simplify right side
    258,169.37x = 51,113,239,576.94
  5. Step 5: Solve for x
    x = 51,113,239,576.94/258,169.37
  6. Step 6: Final answer
    x = 197,983.36

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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.