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Finding the Fourth Proportional to 118,085.75, 177,127.97 and 29,339.21

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Solution

The fourth proportional to 118,085.75, 177,127.97 and 29,339.21 is: 44,008.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,085.75 : 177,127.97 = 29,339.21 : x
  2. Step 2: Convert to fraction form
    118,085.75/177,127.97 = 29,339.21/x
  3. Step 3: Cross multiply
    118,085.75x = 177,127.97 × 29,339.21
  4. Step 4: Simplify right side
    118,085.75x = 5,196,795,004.83
  5. Step 5: Solve for x
    x = 5,196,795,004.83/118,085.75
  6. Step 6: Final answer
    x = 44,008.66

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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.