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Finding the Fourth Proportional to 366,891.85, 550,392.45 and 130,214.71

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Solution

The fourth proportional to 366,891.85, 550,392.45 and 130,214.71 is: 195,341.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,891.85 : 550,392.45 = 130,214.71 : x
  2. Step 2: Convert to fraction form
    366,891.85/550,392.45 = 130,214.71/x
  3. Step 3: Cross multiply
    366,891.85x = 550,392.45 × 130,214.71
  4. Step 4: Simplify right side
    366,891.85x = 71,669,193,262.94
  5. Step 5: Solve for x
    x = 71,669,193,262.94/366,891.85
  6. Step 6: Final answer
    x = 195,341.47

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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.