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Finding the Fourth Proportional to 548,700.90, 823,130.21 and 169,651.20

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Solution

The fourth proportional to 548,700.90, 823,130.21 and 169,651.20 is: 254,501.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,700.90 : 823,130.21 = 169,651.20 : x
  2. Step 2: Convert to fraction form
    548,700.90/823,130.21 = 169,651.20/x
  3. Step 3: Cross multiply
    548,700.90x = 823,130.21 × 169,651.20
  4. Step 4: Simplify right side
    548,700.90x = 139,645,022,918.85
  5. Step 5: Solve for x
    x = 139,645,022,918.85/548,700.90
  6. Step 6: Final answer
    x = 254,501.18

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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.