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Finding the Fourth Proportional to 446,665.80, 669,804.30 and 147,030.60

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Solution

The fourth proportional to 446,665.80, 669,804.30 and 147,030.60 is: 220,481.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,665.80 : 669,804.30 = 147,030.60 : x
  2. Step 2: Convert to fraction form
    446,665.80/669,804.30 = 147,030.60/x
  3. Step 3: Cross multiply
    446,665.80x = 669,804.30 × 147,030.60
  4. Step 4: Simplify right side
    446,665.80x = 98,481,728,111.58
  5. Step 5: Solve for x
    x = 98,481,728,111.58/446,665.80
  6. Step 6: Final answer
    x = 220,481.91

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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.