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Finding the Fourth Proportional to 373,993,623.20, 560,990,434.80 and 169,920,279.20

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Solution

The fourth proportional to 373,993,623.20, 560,990,434.80 and 169,920,279.20 is: 254,880,418.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,993,623.20 : 560,990,434.80 = 169,920,279.20 : x
  2. Step 2: Convert to fraction form
    373,993,623.20/560,990,434.80 = 169,920,279.20/x
  3. Step 3: Cross multiply
    373,993,623.20x = 560,990,434.80 × 169,920,279.20
  4. Step 4: Simplify right side
    373,993,623.20x = 95,323,651,309,745,376
  5. Step 5: Solve for x
    x = 95,323,651,309,745,376/373,993,623.20
  6. Step 6: Final answer
    x = 254,880,418.80

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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.