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Finding the Fourth Proportional to 446,770.80, 670,079.40 and 166,143.60

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Solution

The fourth proportional to 446,770.80, 670,079.40 and 166,143.60 is: 249,186.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,770.80 : 670,079.40 = 166,143.60 : x
  2. Step 2: Convert to fraction form
    446,770.80/670,079.40 = 166,143.60/x
  3. Step 3: Cross multiply
    446,770.80x = 670,079.40 × 166,143.60
  4. Step 4: Simplify right side
    446,770.80x = 111,329,403,801.84
  5. Step 5: Solve for x
    x = 111,329,403,801.84/446,770.80
  6. Step 6: Final answer
    x = 249,186.84

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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.