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Finding the Fourth Proportional to 118,046.99, 177,005.57 and 80,649.29

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Solution

The fourth proportional to 118,046.99, 177,005.57 and 80,649.29 is: 120,929.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,046.99 : 177,005.57 = 80,649.29 : x
  2. Step 2: Convert to fraction form
    118,046.99/177,005.57 = 80,649.29/x
  3. Step 3: Cross multiply
    118,046.99x = 177,005.57 × 80,649.29
  4. Step 4: Simplify right side
    118,046.99x = 14,275,373,585.81
  5. Step 5: Solve for x
    x = 14,275,373,585.81/118,046.99
  6. Step 6: Final answer
    x = 120,929.58

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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.