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Finding the Fourth Proportional to 263,034.30, 394,810.65 and 130,064.70

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Solution

The fourth proportional to 263,034.30, 394,810.65 and 130,064.70 is: 195,225.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,034.30 : 394,810.65 = 130,064.70 : x
  2. Step 2: Convert to fraction form
    263,034.30/394,810.65 = 130,064.70/x
  3. Step 3: Cross multiply
    263,034.30x = 394,810.65 × 130,064.70
  4. Step 4: Simplify right side
    263,034.30x = 51,350,928,749.06
  5. Step 5: Solve for x
    x = 51,350,928,749.06/263,034.30
  6. Step 6: Final answer
    x = 195,225.22

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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.