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Finding the Fourth Proportional to 112,625.99, 155,408.51 and 67,294.40

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Solution

The fourth proportional to 112,625.99, 155,408.51 and 67,294.40 is: 92,857.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,625.99 : 155,408.51 = 67,294.40 : x
  2. Step 2: Convert to fraction form
    112,625.99/155,408.51 = 67,294.40/x
  3. Step 3: Cross multiply
    112,625.99x = 155,408.51 × 67,294.40
  4. Step 4: Simplify right side
    112,625.99x = 10,458,121,321.83
  5. Step 5: Solve for x
    x = 10,458,121,321.83/112,625.99
  6. Step 6: Final answer
    x = 92,857.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.