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Finding the Fourth Proportional to 424,096.92, 636,130.80 and 108,556.56

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Solution

The fourth proportional to 424,096.92, 636,130.80 and 108,556.56 is: 162,831.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,096.92 : 636,130.80 = 108,556.56 : x
  2. Step 2: Convert to fraction form
    424,096.92/636,130.80 = 108,556.56/x
  3. Step 3: Cross multiply
    424,096.92x = 636,130.80 × 108,556.56
  4. Step 4: Simplify right side
    424,096.92x = 69,056,171,358.05
  5. Step 5: Solve for x
    x = 69,056,171,358.05/424,096.92
  6. Step 6: Final answer
    x = 162,831.11

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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.