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Finding the Fourth Proportional to 197,775.88, 296,631.01 and 71,391.88

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Solution

The fourth proportional to 197,775.88, 296,631.01 and 71,391.88 is: 107,075.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,775.88 : 296,631.01 = 71,391.88 : x
  2. Step 2: Convert to fraction form
    197,775.88/296,631.01 = 71,391.88/x
  3. Step 3: Cross multiply
    197,775.88x = 296,631.01 × 71,391.88
  4. Step 4: Simplify right side
    197,775.88x = 21,177,045,930.23
  5. Step 5: Solve for x
    x = 21,177,045,930.23/197,775.88
  6. Step 6: Final answer
    x = 107,075.98

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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.