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Finding the Fourth Proportional to 118,950.90, 164,151.99 and 68,649.90

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Solution

The fourth proportional to 118,950.90, 164,151.99 and 68,649.90 is: 94,736.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,950.90 : 164,151.99 = 68,649.90 : x
  2. Step 2: Convert to fraction form
    118,950.90/164,151.99 = 68,649.90/x
  3. Step 3: Cross multiply
    118,950.90x = 164,151.99 × 68,649.90
  4. Step 4: Simplify right side
    118,950.90x = 11,269,017,698.30
  5. Step 5: Solve for x
    x = 11,269,017,698.30/118,950.90
  6. Step 6: Final answer
    x = 94,736.72

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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.