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Finding the Fourth Proportional to 179,991.80, 269,987.54 and 55,332.60

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Solution

The fourth proportional to 179,991.80, 269,987.54 and 55,332.60 is: 82,998.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,991.80 : 269,987.54 = 55,332.60 : x
  2. Step 2: Convert to fraction form
    179,991.80/269,987.54 = 55,332.60/x
  3. Step 3: Cross multiply
    179,991.80x = 269,987.54 × 55,332.60
  4. Step 4: Simplify right side
    179,991.80x = 14,939,112,555.80
  5. Step 5: Solve for x
    x = 14,939,112,555.80/179,991.80
  6. Step 6: Final answer
    x = 82,998.85

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1.5x scale

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.