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Finding the Fourth Proportional to 123,846.15, 170,901.32 and 67,257.39

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Solution

The fourth proportional to 123,846.15, 170,901.32 and 67,257.39 is: 92,811.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,846.15 : 170,901.32 = 67,257.39 : x
  2. Step 2: Convert to fraction form
    123,846.15/170,901.32 = 67,257.39/x
  3. Step 3: Cross multiply
    123,846.15x = 170,901.32 × 67,257.39
  4. Step 4: Simplify right side
    123,846.15x = 11,494,376,394.47
  5. Step 5: Solve for x
    x = 11,494,376,394.47/123,846.15
  6. Step 6: Final answer
    x = 92,811.74

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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.