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Finding the Fourth Proportional to 351,566.98, 485,162.24 and 190,421.98

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Solution

The fourth proportional to 351,566.98, 485,162.24 and 190,421.98 is: 262,782.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,566.98 : 485,162.24 = 190,421.98 : x
  2. Step 2: Convert to fraction form
    351,566.98/485,162.24 = 190,421.98/x
  3. Step 3: Cross multiply
    351,566.98x = 485,162.24 × 190,421.98
  4. Step 4: Simplify right side
    351,566.98x = 92,385,554,362.04
  5. Step 5: Solve for x
    x = 92,385,554,362.04/351,566.98
  6. Step 6: Final answer
    x = 262,782.23

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.