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Finding the Fourth Proportional to 446,666.40, 669,769.20 and 166,039.20

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Solution

The fourth proportional to 446,666.40, 669,769.20 and 166,039.20 is: 248,973.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,666.40 : 669,769.20 = 166,039.20 : x
  2. Step 2: Convert to fraction form
    446,666.40/669,769.20 = 166,039.20/x
  3. Step 3: Cross multiply
    446,666.40x = 669,769.20 × 166,039.20
  4. Step 4: Simplify right side
    446,666.40x = 111,207,942,152.64
  5. Step 5: Solve for x
    x = 111,207,942,152.64/446,666.40
  6. Step 6: Final answer
    x = 248,973.15

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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.