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Finding the Fourth Proportional to 176,016.80, 264,025.20 and 81,246.80

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Solution

The fourth proportional to 176,016.80, 264,025.20 and 81,246.80 is: 121,870.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,016.80 : 264,025.20 = 81,246.80 : x
  2. Step 2: Convert to fraction form
    176,016.80/264,025.20 = 81,246.80/x
  3. Step 3: Cross multiply
    176,016.80x = 264,025.20 × 81,246.80
  4. Step 4: Simplify right side
    176,016.80x = 21,451,202,619.36
  5. Step 5: Solve for x
    x = 21,451,202,619.36/176,016.80
  6. Step 6: Final answer
    x = 121,870.20

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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.