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Finding the Fourth Proportional to 216,622.40, 325,093.28 and 102,770.64

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Solution

The fourth proportional to 216,622.40, 325,093.28 and 102,770.64 is: 154,231.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,622.40 : 325,093.28 = 102,770.64 : x
  2. Step 2: Convert to fraction form
    216,622.40/325,093.28 = 102,770.64/x
  3. Step 3: Cross multiply
    216,622.40x = 325,093.28 × 102,770.64
  4. Step 4: Simplify right side
    216,622.40x = 33,410,044,445.30
  5. Step 5: Solve for x
    x = 33,410,044,445.30/216,622.40
  6. Step 6: Final answer
    x = 154,231.72

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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.