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Finding the Fourth Proportional to 118,636.98, 177,955.48 and 39,751.36

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Solution

The fourth proportional to 118,636.98, 177,955.48 and 39,751.36 is: 59,627.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,636.98 : 177,955.48 = 39,751.36 : x
  2. Step 2: Convert to fraction form
    118,636.98/177,955.48 = 39,751.36/x
  3. Step 3: Cross multiply
    118,636.98x = 177,955.48 × 39,751.36
  4. Step 4: Simplify right side
    118,636.98x = 7,073,972,349.45
  5. Step 5: Solve for x
    x = 7,073,972,349.45/118,636.98
  6. Step 6: Final answer
    x = 59,627.04

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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.