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Finding the Fourth Proportional to 88,890.82, 133,308.43 and 29,712.64

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Solution

The fourth proportional to 88,890.82, 133,308.43 and 29,712.64 is: 44,559.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,890.82 : 133,308.43 = 29,712.64 : x
  2. Step 2: Convert to fraction form
    88,890.82/133,308.43 = 29,712.64/x
  3. Step 3: Cross multiply
    88,890.82x = 133,308.43 × 29,712.64
  4. Step 4: Simplify right side
    88,890.82x = 3,960,945,389.56
  5. Step 5: Solve for x
    x = 3,960,945,389.56/88,890.82
  6. Step 6: Final answer
    x = 44,559.67

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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.