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Finding the Fourth Proportional to 177,074.40, 265,762.80 and 71,968.80

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Solution

The fourth proportional to 177,074.40, 265,762.80 and 71,968.80 is: 108,014.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,074.40 : 265,762.80 = 71,968.80 : x
  2. Step 2: Convert to fraction form
    177,074.40/265,762.80 = 71,968.80/x
  3. Step 3: Cross multiply
    177,074.40x = 265,762.80 × 71,968.80
  4. Step 4: Simplify right side
    177,074.40x = 19,126,629,800.64
  5. Step 5: Solve for x
    x = 19,126,629,800.64/177,074.40
  6. Step 6: Final answer
    x = 108,014.65

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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.