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Finding the Fourth Proportional to 446,726.40, 669,859.20 and 166,099.20

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Solution

The fourth proportional to 446,726.40, 669,859.20 and 166,099.20 is: 249,063.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,726.40 : 669,859.20 = 166,099.20 : x
  2. Step 2: Convert to fraction form
    446,726.40/669,859.20 = 166,099.20/x
  3. Step 3: Cross multiply
    446,726.40x = 669,859.20 × 166,099.20
  4. Step 4: Simplify right side
    446,726.40x = 111,263,077,232.64
  5. Step 5: Solve for x
    x = 111,263,077,232.64/446,726.40
  6. Step 6: Final answer
    x = 249,063.13

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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.