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Finding the Fourth Proportional to 222,000.45, 332,617.95 and 103,428.60

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Solution

The fourth proportional to 222,000.45, 332,617.95 and 103,428.60 is: 154,964.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,000.45 : 332,617.95 = 103,428.60 : x
  2. Step 2: Convert to fraction form
    222,000.45/332,617.95 = 103,428.60/x
  3. Step 3: Cross multiply
    222,000.45x = 332,617.95 × 103,428.60
  4. Step 4: Simplify right side
    222,000.45x = 34,402,208,903.37
  5. Step 5: Solve for x
    x = 34,402,208,903.37/222,000.45
  6. Step 6: Final answer
    x = 154,964.59

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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.