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Finding the Fourth Proportional to 111,357.15, 167,072.40 and 74,063.94

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Solution

The fourth proportional to 111,357.15, 167,072.40 and 74,063.94 is: 111,120.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,357.15 : 167,072.40 = 74,063.94 : x
  2. Step 2: Convert to fraction form
    111,357.15/167,072.40 = 74,063.94/x
  3. Step 3: Cross multiply
    111,357.15x = 167,072.40 × 74,063.94
  4. Step 4: Simplify right side
    111,357.15x = 12,374,040,209.26
  5. Step 5: Solve for x
    x = 12,374,040,209.26/111,357.15
  6. Step 6: Final answer
    x = 111,120.30

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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.