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Finding the Fourth Proportional to 122,438.41, 168,955.83 and 67,993.65

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Solution

The fourth proportional to 122,438.41, 168,955.83 and 67,993.65 is: 93,826.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,438.41 : 168,955.83 = 67,993.65 : x
  2. Step 2: Convert to fraction form
    122,438.41/168,955.83 = 67,993.65/x
  3. Step 3: Cross multiply
    122,438.41x = 168,955.83 × 67,993.65
  4. Step 4: Simplify right side
    122,438.41x = 11,487,923,570.48
  5. Step 5: Solve for x
    x = 11,487,923,570.48/122,438.41
  6. Step 6: Final answer
    x = 93,826.14

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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.