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Finding the Fourth Proportional to 172,228.40, 258,349.80 and 92,232.80

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Solution

The fourth proportional to 172,228.40, 258,349.80 and 92,232.80 is: 138,353.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,228.40 : 258,349.80 = 92,232.80 : x
  2. Step 2: Convert to fraction form
    172,228.40/258,349.80 = 92,232.80/x
  3. Step 3: Cross multiply
    172,228.40x = 258,349.80 × 92,232.80
  4. Step 4: Simplify right side
    172,228.40x = 23,828,325,433.44
  5. Step 5: Solve for x
    x = 23,828,325,433.44/172,228.40
  6. Step 6: Final answer
    x = 138,353.06

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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.