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Finding the Fourth Proportional to 174,959.80, 262,439.70 and 118,972.60

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Solution

The fourth proportional to 174,959.80, 262,439.70 and 118,972.60 is: 178,458.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,959.80 : 262,439.70 = 118,972.60 : x
  2. Step 2: Convert to fraction form
    174,959.80/262,439.70 = 118,972.60/x
  3. Step 3: Cross multiply
    174,959.80x = 262,439.70 × 118,972.60
  4. Step 4: Simplify right side
    174,959.80x = 31,223,133,452.22
  5. Step 5: Solve for x
    x = 31,223,133,452.22/174,959.80
  6. Step 6: Final answer
    x = 178,458.90

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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.