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Finding the Fourth Proportional to 221,373, 332,059.50 and 73,629

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Solution

The fourth proportional to 221,373, 332,059.50 and 73,629 is: 110,443.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,373 : 332,059.50 = 73,629 : x
  2. Step 2: Convert to fraction form
    221,373/332,059.50 = 73,629/x
  3. Step 3: Cross multiply
    221,373x = 332,059.50 × 73,629
  4. Step 4: Simplify right side
    221,373x = 24,449,208,925.50
  5. Step 5: Solve for x
    x = 24,449,208,925.50/221,373
  6. Step 6: Final answer
    x = 110,443.50

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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.