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Finding the Fourth Proportional to 167,483.55, 251,084.12 and 72,642.34

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Solution

The fourth proportional to 167,483.55, 251,084.12 and 72,642.34 is: 108,902.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,483.55 : 251,084.12 = 72,642.34 : x
  2. Step 2: Convert to fraction form
    167,483.55/251,084.12 = 72,642.34/x
  3. Step 3: Cross multiply
    167,483.55x = 251,084.12 × 72,642.34
  4. Step 4: Simplify right side
    167,483.55x = 18,239,337,964.28
  5. Step 5: Solve for x
    x = 18,239,337,964.28/167,483.55
  6. Step 6: Final answer
    x = 108,902.26

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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.