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Finding the Fourth Proportional to 260,940.81, 360,098.32 and 147,785.43

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Solution

The fourth proportional to 260,940.81, 360,098.32 and 147,785.43 is: 203,943.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,940.81 : 360,098.32 = 147,785.43 : x
  2. Step 2: Convert to fraction form
    260,940.81/360,098.32 = 147,785.43/x
  3. Step 3: Cross multiply
    260,940.81x = 360,098.32 × 147,785.43
  4. Step 4: Simplify right side
    260,940.81x = 53,217,285,063.48
  5. Step 5: Solve for x
    x = 53,217,285,063.48/260,940.81
  6. Step 6: Final answer
    x = 203,943.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.