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Finding the Fourth Proportional to 118,316.78, 177,060.44 and 91,852.46

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Solution

The fourth proportional to 118,316.78, 177,060.44 and 91,852.46 is: 137,456.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,316.78 : 177,060.44 = 91,852.46 : x
  2. Step 2: Convert to fraction form
    118,316.78/177,060.44 = 91,852.46/x
  3. Step 3: Cross multiply
    118,316.78x = 177,060.44 × 91,852.46
  4. Step 4: Simplify right side
    118,316.78x = 16,263,436,982.68
  5. Step 5: Solve for x
    x = 16,263,436,982.68/118,316.78
  6. Step 6: Final answer
    x = 137,456.72

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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.