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Finding the Fourth Proportional to 111,247.80, 166,870.23 and 27,008.63

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Solution

The fourth proportional to 111,247.80, 166,870.23 and 27,008.63 is: 40,512.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,247.80 : 166,870.23 = 27,008.63 : x
  2. Step 2: Convert to fraction form
    111,247.80/166,870.23 = 27,008.63/x
  3. Step 3: Cross multiply
    111,247.80x = 166,870.23 × 27,008.63
  4. Step 4: Simplify right side
    111,247.80x = 4,506,935,465.73
  5. Step 5: Solve for x
    x = 4,506,935,465.73/111,247.80
  6. Step 6: Final answer
    x = 40,512.58

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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.