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Finding the Fourth Proportional to 443,578.14, 665,630.73 and 163,292.22

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Solution

The fourth proportional to 443,578.14, 665,630.73 and 163,292.22 is: 245,035.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,578.14 : 665,630.73 = 163,292.22 : x
  2. Step 2: Convert to fraction form
    443,578.14/665,630.73 = 163,292.22/x
  3. Step 3: Cross multiply
    443,578.14x = 665,630.73 × 163,292.22
  4. Step 4: Simplify right side
    443,578.14x = 108,692,319,601.92
  5. Step 5: Solve for x
    x = 108,692,319,601.92/443,578.14
  6. Step 6: Final answer
    x = 245,035.34

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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.