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Finding the Fourth Proportional to 260,965.81, 360,120.76 and 147,789.37

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Solution

The fourth proportional to 260,965.81, 360,120.76 and 147,789.37 is: 203,942.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,965.81 : 360,120.76 = 147,789.37 : x
  2. Step 2: Convert to fraction form
    260,965.81/360,120.76 = 147,789.37/x
  3. Step 3: Cross multiply
    260,965.81x = 360,120.76 × 147,789.37
  4. Step 4: Simplify right side
    260,965.81x = 53,222,020,244.32
  5. Step 5: Solve for x
    x = 53,222,020,244.32/260,965.81
  6. Step 6: Final answer
    x = 203,942.50

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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.