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Finding the Fourth Proportional to 111,223.80, 166,446.90 and 101,892.60

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Solution

The fourth proportional to 111,223.80, 166,446.90 and 101,892.60 is: 152,482.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,223.80 : 166,446.90 = 101,892.60 : x
  2. Step 2: Convert to fraction form
    111,223.80/166,446.90 = 101,892.60/x
  3. Step 3: Cross multiply
    111,223.80x = 166,446.90 × 101,892.60
  4. Step 4: Simplify right side
    111,223.80x = 16,959,707,402.94
  5. Step 5: Solve for x
    x = 16,959,707,402.94/111,223.80
  6. Step 6: Final answer
    x = 152,482.72

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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.