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Finding the Fourth Proportional to 172,232.40, 258,355.80 and 92,236.80

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Solution

The fourth proportional to 172,232.40, 258,355.80 and 92,236.80 is: 138,359.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,232.40 : 258,355.80 = 92,236.80 : x
  2. Step 2: Convert to fraction form
    172,232.40/258,355.80 = 92,236.80/x
  3. Step 3: Cross multiply
    172,232.40x = 258,355.80 × 92,236.80
  4. Step 4: Simplify right side
    172,232.40x = 23,829,912,253.44
  5. Step 5: Solve for x
    x = 23,829,912,253.44/172,232.40
  6. Step 6: Final answer
    x = 138,359.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.