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Finding the Fourth Proportional to 112,893.84, 169,418.52 and 39,021.84

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Solution

The fourth proportional to 112,893.84, 169,418.52 and 39,021.84 is: 58,559.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,893.84 : 169,418.52 = 39,021.84 : x
  2. Step 2: Convert to fraction form
    112,893.84/169,418.52 = 39,021.84/x
  3. Step 3: Cross multiply
    112,893.84x = 169,418.52 × 39,021.84
  4. Step 4: Simplify right side
    112,893.84x = 6,611,022,380.48
  5. Step 5: Solve for x
    x = 6,611,022,380.48/112,893.84
  6. Step 6: Final answer
    x = 58,559.64

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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.