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Finding the Fourth Proportional to 111,806.67, 167,071.23 and 85,005.39

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Solution

The fourth proportional to 111,806.67, 167,071.23 and 85,005.39 is: 127,022.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,806.67 : 167,071.23 = 85,005.39 : x
  2. Step 2: Convert to fraction form
    111,806.67/167,071.23 = 85,005.39/x
  3. Step 3: Cross multiply
    111,806.67x = 167,071.23 × 85,005.39
  4. Step 4: Simplify right side
    111,806.67x = 14,201,955,063.93
  5. Step 5: Solve for x
    x = 14,201,955,063.93/111,806.67
  6. Step 6: Final answer
    x = 127,022.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.