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Finding the Fourth Proportional to 126,992.20, 177,555.80 and 126,992.20

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Solution

The fourth proportional to 126,992.20, 177,555.80 and 126,992.20 is: 177,555.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,992.20 : 177,555.80 = 126,992.20 : x
  2. Step 2: Convert to fraction form
    126,992.20/177,555.80 = 126,992.20/x
  3. Step 3: Cross multiply
    126,992.20x = 177,555.80 × 126,992.20
  4. Step 4: Simplify right side
    126,992.20x = 22,548,201,664.76
  5. Step 5: Solve for x
    x = 22,548,201,664.76/126,992.20
  6. Step 6: Final answer
    x = 177,555.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.