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Finding the Fourth Proportional to 80,267.60, 120,326.94 and 29,638.67

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Solution

The fourth proportional to 80,267.60, 120,326.94 and 29,638.67 is: 44,430.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,267.60 : 120,326.94 = 29,638.67 : x
  2. Step 2: Convert to fraction form
    80,267.60/120,326.94 = 29,638.67/x
  3. Step 3: Cross multiply
    80,267.60x = 120,326.94 × 29,638.67
  4. Step 4: Simplify right side
    80,267.60x = 3,566,330,466.77
  5. Step 5: Solve for x
    x = 3,566,330,466.77/80,267.60
  6. Step 6: Final answer
    x = 44,430.51

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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.