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Finding the Fourth Proportional to 171,197.70, 236,328.50 and 102,311.48

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Solution

The fourth proportional to 171,197.70, 236,328.50 and 102,311.48 is: 141,235.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,197.70 : 236,328.50 = 102,311.48 : x
  2. Step 2: Convert to fraction form
    171,197.70/236,328.50 = 102,311.48/x
  3. Step 3: Cross multiply
    171,197.70x = 236,328.50 × 102,311.48
  4. Step 4: Simplify right side
    171,197.70x = 24,179,116,907.98
  5. Step 5: Solve for x
    x = 24,179,116,907.98/171,197.70
  6. Step 6: Final answer
    x = 141,235.06

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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.