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Finding the Fourth Proportional to 177,632.80, 266,740.80 and 118,729.60

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Solution

The fourth proportional to 177,632.80, 266,740.80 and 118,729.60 is: 178,289.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,632.80 : 266,740.80 = 118,729.60 : x
  2. Step 2: Convert to fraction form
    177,632.80/266,740.80 = 118,729.60/x
  3. Step 3: Cross multiply
    177,632.80x = 266,740.80 × 118,729.60
  4. Step 4: Simplify right side
    177,632.80x = 31,670,028,487.68
  5. Step 5: Solve for x
    x = 31,670,028,487.68/177,632.80
  6. Step 6: Final answer
    x = 178,289.31

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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.