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Finding the Fourth Proportional to 171,352.48, 258,198.76 and 140,870.56

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Solution

The fourth proportional to 171,352.48, 258,198.76 and 140,870.56 is: 212,267.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,352.48 : 258,198.76 = 140,870.56 : x
  2. Step 2: Convert to fraction form
    171,352.48/258,198.76 = 140,870.56/x
  3. Step 3: Cross multiply
    171,352.48x = 258,198.76 × 140,870.56
  4. Step 4: Simplify right side
    171,352.48x = 36,372,603,912.51
  5. Step 5: Solve for x
    x = 36,372,603,912.51/171,352.48
  6. Step 6: Final answer
    x = 212,267.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.