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Finding the Fourth Proportional to 172,846.31, 259,269.46 and 54,526.84

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Solution

The fourth proportional to 172,846.31, 259,269.46 and 54,526.84 is: 81,790.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,846.31 : 259,269.46 = 54,526.84 : x
  2. Step 2: Convert to fraction form
    172,846.31/259,269.46 = 54,526.84/x
  3. Step 3: Cross multiply
    172,846.31x = 259,269.46 × 54,526.84
  4. Step 4: Simplify right side
    172,846.31x = 14,137,143,577.82
  5. Step 5: Solve for x
    x = 14,137,143,577.82/172,846.31
  6. Step 6: Final answer
    x = 81,790.26

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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.