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Finding the Fourth Proportional to 88,890.72, 133,365.28 and 36,344.40

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Solution

The fourth proportional to 88,890.72, 133,365.28 and 36,344.40 is: 54,528.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,890.72 : 133,365.28 = 36,344.40 : x
  2. Step 2: Convert to fraction form
    88,890.72/133,365.28 = 36,344.40/x
  3. Step 3: Cross multiply
    88,890.72x = 133,365.28 × 36,344.40
  4. Step 4: Simplify right side
    88,890.72x = 4,847,081,082.43
  5. Step 5: Solve for x
    x = 4,847,081,082.43/88,890.72
  6. Step 6: Final answer
    x = 54,528.54

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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.