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Finding the Fourth Proportional to 202,456.20, 303,957.90 and 118,302.60

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Solution

The fourth proportional to 202,456.20, 303,957.90 and 118,302.60 is: 177,613.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,456.20 : 303,957.90 = 118,302.60 : x
  2. Step 2: Convert to fraction form
    202,456.20/303,957.90 = 118,302.60/x
  3. Step 3: Cross multiply
    202,456.20x = 303,957.90 × 118,302.60
  4. Step 4: Simplify right side
    202,456.20x = 35,959,009,860.54
  5. Step 5: Solve for x
    x = 35,959,009,860.54/202,456.20
  6. Step 6: Final answer
    x = 177,613.77

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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.