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Finding the Fourth Proportional to 366,947.30, 550,291.35 and 130,297.70

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Solution

The fourth proportional to 366,947.30, 550,291.35 and 130,297.70 is: 195,400.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,947.30 : 550,291.35 = 130,297.70 : x
  2. Step 2: Convert to fraction form
    366,947.30/550,291.35 = 130,297.70/x
  3. Step 3: Cross multiply
    366,947.30x = 550,291.35 × 130,297.70
  4. Step 4: Simplify right side
    366,947.30x = 71,701,697,234.90
  5. Step 5: Solve for x
    x = 71,701,697,234.90/366,947.30
  6. Step 6: Final answer
    x = 195,400.53

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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.