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Finding the Fourth Proportional to 351,483.85, 485,047.97 and 190,339.07

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Solution

The fourth proportional to 351,483.85, 485,047.97 and 190,339.07 is: 262,668.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,483.85 : 485,047.97 = 190,339.07 : x
  2. Step 2: Convert to fraction form
    351,483.85/485,047.97 = 190,339.07/x
  3. Step 3: Cross multiply
    351,483.85x = 485,047.97 × 190,339.07
  4. Step 4: Simplify right side
    351,483.85x = 92,323,581,203.66
  5. Step 5: Solve for x
    x = 92,323,581,203.66/351,483.85
  6. Step 6: Final answer
    x = 262,668.06

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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.