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Finding the Fourth Proportional to 479,043.28, 718,367.22 and 163,525.60

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Solution

The fourth proportional to 479,043.28, 718,367.22 and 163,525.60 is: 245,220.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,043.28 : 718,367.22 = 163,525.60 : x
  2. Step 2: Convert to fraction form
    479,043.28/718,367.22 = 163,525.60/x
  3. Step 3: Cross multiply
    479,043.28x = 718,367.22 × 163,525.60
  4. Step 4: Simplify right side
    479,043.28x = 117,471,430,670.83
  5. Step 5: Solve for x
    x = 117,471,430,670.83/479,043.28
  6. Step 6: Final answer
    x = 245,220.91

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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.