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Finding the Fourth Proportional to 70,013.54, 104,880.44 and 47,771.76

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Solution

The fourth proportional to 70,013.54, 104,880.44 and 47,771.76 is: 71,562.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,013.54 : 104,880.44 = 47,771.76 : x
  2. Step 2: Convert to fraction form
    70,013.54/104,880.44 = 47,771.76/x
  3. Step 3: Cross multiply
    70,013.54x = 104,880.44 × 47,771.76
  4. Step 4: Simplify right side
    70,013.54x = 5,010,323,208.37
  5. Step 5: Solve for x
    x = 5,010,323,208.37/70,013.54
  6. Step 6: Final answer
    x = 71,562.20

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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.