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Finding the Fourth Proportional to 383,708.70, 575,562.60 and 103,225.92

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Solution

The fourth proportional to 383,708.70, 575,562.60 and 103,225.92 is: 154,838.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,708.70 : 575,562.60 = 103,225.92 : x
  2. Step 2: Convert to fraction form
    383,708.70/575,562.60 = 103,225.92/x
  3. Step 3: Cross multiply
    383,708.70x = 575,562.60 × 103,225.92
  4. Step 4: Simplify right side
    383,708.70x = 59,412,978,902.59
  5. Step 5: Solve for x
    x = 59,412,978,902.59/383,708.70
  6. Step 6: Final answer
    x = 154,838.76

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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.