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Finding the Fourth Proportional to 139,622.74, 209,429.65 and 44,852.54

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Solution

The fourth proportional to 139,622.74, 209,429.65 and 44,852.54 is: 67,277.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,622.74 : 209,429.65 = 44,852.54 : x
  2. Step 2: Convert to fraction form
    139,622.74/209,429.65 = 44,852.54/x
  3. Step 3: Cross multiply
    139,622.74x = 209,429.65 × 44,852.54
  4. Step 4: Simplify right side
    139,622.74x = 9,393,450,762.73
  5. Step 5: Solve for x
    x = 9,393,450,762.73/139,622.74
  6. Step 6: Final answer
    x = 67,277.37

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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.