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Finding the Fourth Proportional to 176,911.20, 265,366.80 and 169,912.80

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Solution

The fourth proportional to 176,911.20, 265,366.80 and 169,912.80 is: 254,869.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,911.20 : 265,366.80 = 169,912.80 : x
  2. Step 2: Convert to fraction form
    176,911.20/265,366.80 = 169,912.80/x
  3. Step 3: Cross multiply
    176,911.20x = 265,366.80 × 169,912.80
  4. Step 4: Simplify right side
    176,911.20x = 45,089,216,015.04
  5. Step 5: Solve for x
    x = 45,089,216,015.04/176,911.20
  6. Step 6: Final answer
    x = 254,869.20

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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.