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Finding the Fourth Proportional to 173,312.20, 259,968.30 and 54,992.80

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Solution

The fourth proportional to 173,312.20, 259,968.30 and 54,992.80 is: 82,489.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,312.20 : 259,968.30 = 54,992.80 : x
  2. Step 2: Convert to fraction form
    173,312.20/259,968.30 = 54,992.80/x
  3. Step 3: Cross multiply
    173,312.20x = 259,968.30 × 54,992.80
  4. Step 4: Simplify right side
    173,312.20x = 14,296,384,728.24
  5. Step 5: Solve for x
    x = 14,296,384,728.24/173,312.20
  6. Step 6: Final answer
    x = 82,489.20

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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.