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Finding the Fourth Proportional to 88,978.84, 133,375.32 and 29,765.84

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Solution

The fourth proportional to 88,978.84, 133,375.32 and 29,765.84 is: 44,617.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,978.84 : 133,375.32 = 29,765.84 : x
  2. Step 2: Convert to fraction form
    88,978.84/133,375.32 = 29,765.84/x
  3. Step 3: Cross multiply
    88,978.84x = 133,375.32 × 29,765.84
  4. Step 4: Simplify right side
    88,978.84x = 3,970,028,435.07
  5. Step 5: Solve for x
    x = 3,970,028,435.07/88,978.84
  6. Step 6: Final answer
    x = 44,617.67

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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.