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Finding the Fourth Proportional to 168,051.30, 252,076.95 and 118,187.70

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Solution

The fourth proportional to 168,051.30, 252,076.95 and 118,187.70 is: 177,281.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,051.30 : 252,076.95 = 118,187.70 : x
  2. Step 2: Convert to fraction form
    168,051.30/252,076.95 = 118,187.70/x
  3. Step 3: Cross multiply
    168,051.30x = 252,076.95 × 118,187.70
  4. Step 4: Simplify right side
    168,051.30x = 29,792,394,943.52
  5. Step 5: Solve for x
    x = 29,792,394,943.52/168,051.30
  6. Step 6: Final answer
    x = 177,281.55

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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.