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Finding the Fourth Proportional to 219,763.73, 329,695.31 and 70,012.55

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Solution

The fourth proportional to 219,763.73, 329,695.31 and 70,012.55 is: 105,034.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,763.73 : 329,695.31 = 70,012.55 : x
  2. Step 2: Convert to fraction form
    219,763.73/329,695.31 = 70,012.55/x
  3. Step 3: Cross multiply
    219,763.73x = 329,695.31 × 70,012.55
  4. Step 4: Simplify right side
    219,763.73x = 23,082,810,375.41
  5. Step 5: Solve for x
    x = 23,082,810,375.41/219,763.73
  6. Step 6: Final answer
    x = 105,034.67

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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.