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Finding the Fourth Proportional to 255,609.87, 352,743.02 and 148,243.56

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Solution

The fourth proportional to 255,609.87, 352,743.02 and 148,243.56 is: 204,576.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,609.87 : 352,743.02 = 148,243.56 : x
  2. Step 2: Convert to fraction form
    255,609.87/352,743.02 = 148,243.56/x
  3. Step 3: Cross multiply
    255,609.87x = 352,743.02 × 148,243.56
  4. Step 4: Simplify right side
    255,609.87x = 52,291,881,049.95
  5. Step 5: Solve for x
    x = 52,291,881,049.95/255,609.87
  6. Step 6: Final answer
    x = 204,576.92

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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.