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Finding the Fourth Proportional to 366,878.20, 550,317.30 and 130,244.80

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Solution

The fourth proportional to 366,878.20, 550,317.30 and 130,244.80 is: 195,367.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,878.20 : 550,317.30 = 130,244.80 : x
  2. Step 2: Convert to fraction form
    366,878.20/550,317.30 = 130,244.80/x
  3. Step 3: Cross multiply
    366,878.20x = 550,317.30 × 130,244.80
  4. Step 4: Simplify right side
    366,878.20x = 71,675,966,675.04
  5. Step 5: Solve for x
    x = 71,675,966,675.04/366,878.20
  6. Step 6: Final answer
    x = 195,367.20

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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.