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Finding the Fourth Proportional to 70,059.84, 104,922.72 and 38,817.60

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Solution

The fourth proportional to 70,059.84, 104,922.72 and 38,817.60 is: 58,133.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,059.84 : 104,922.72 = 38,817.60 : x
  2. Step 2: Convert to fraction form
    70,059.84/104,922.72 = 38,817.60/x
  3. Step 3: Cross multiply
    70,059.84x = 104,922.72 × 38,817.60
  4. Step 4: Simplify right side
    70,059.84x = 4,072,848,175.87
  5. Step 5: Solve for x
    x = 4,072,848,175.87/70,059.84
  6. Step 6: Final answer
    x = 58,133.85

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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.