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Finding the Fourth Proportional to 275,516.30, 413,274.45 and 118,052.30

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Solution

The fourth proportional to 275,516.30, 413,274.45 and 118,052.30 is: 177,078.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,516.30 : 413,274.45 = 118,052.30 : x
  2. Step 2: Convert to fraction form
    275,516.30/413,274.45 = 118,052.30/x
  3. Step 3: Cross multiply
    275,516.30x = 413,274.45 × 118,052.30
  4. Step 4: Simplify right side
    275,516.30x = 48,787,999,353.74
  5. Step 5: Solve for x
    x = 48,787,999,353.74/275,516.30
  6. Step 6: Final answer
    x = 177,078.45

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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.