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Finding the Fourth Proportional to 488,672.60, 733,008.90 and 173,161.40

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Solution

The fourth proportional to 488,672.60, 733,008.90 and 173,161.40 is: 259,742.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,672.60 : 733,008.90 = 173,161.40 : x
  2. Step 2: Convert to fraction form
    488,672.60/733,008.90 = 173,161.40/x
  3. Step 3: Cross multiply
    488,672.60x = 733,008.90 × 173,161.40
  4. Step 4: Simplify right side
    488,672.60x = 126,928,847,336.46
  5. Step 5: Solve for x
    x = 126,928,847,336.46/488,672.60
  6. Step 6: Final answer
    x = 259,742.10

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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.