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Finding the Fourth Proportional to 294,116.20, 440,828.70 and 125,636.20

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Solution

The fourth proportional to 294,116.20, 440,828.70 and 125,636.20 is: 188,306.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    294,116.20 : 440,828.70 = 125,636.20 : x
  2. Step 2: Convert to fraction form
    294,116.20/440,828.70 = 125,636.20/x
  3. Step 3: Cross multiply
    294,116.20x = 440,828.70 × 125,636.20
  4. Step 4: Simplify right side
    294,116.20x = 55,384,042,718.94
  5. Step 5: Solve for x
    x = 55,384,042,718.94/294,116.20
  6. Step 6: Final answer
    x = 188,306.67

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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.