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Finding the Fourth Proportional to 172,999.68, 259,477.20 and 54,682.98

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Solution

The fourth proportional to 172,999.68, 259,477.20 and 54,682.98 is: 82,017.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,999.68 : 259,477.20 = 54,682.98 : x
  2. Step 2: Convert to fraction form
    172,999.68/259,477.20 = 54,682.98/x
  3. Step 3: Cross multiply
    172,999.68x = 259,477.20 × 54,682.98
  4. Step 4: Simplify right side
    172,999.68x = 14,188,986,538.06
  5. Step 5: Solve for x
    x = 14,188,986,538.06/172,999.68
  6. Step 6: Final answer
    x = 82,017.41

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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.