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Finding the Fourth Proportional to 443,432.30, 665,148.45 and 163,150.70

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Solution

The fourth proportional to 443,432.30, 665,148.45 and 163,150.70 is: 244,726.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,432.30 : 665,148.45 = 163,150.70 : x
  2. Step 2: Convert to fraction form
    443,432.30/665,148.45 = 163,150.70/x
  3. Step 3: Cross multiply
    443,432.30x = 665,148.45 × 163,150.70
  4. Step 4: Simplify right side
    443,432.30x = 108,519,435,221.42
  5. Step 5: Solve for x
    x = 108,519,435,221.42/443,432.30
  6. Step 6: Final answer
    x = 244,726.05

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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.