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Finding the Fourth Proportional to 88,696.88, 133,082.21 and 53,226.51

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Solution

The fourth proportional to 88,696.88, 133,082.21 and 53,226.51 is: 79,861.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,696.88 : 133,082.21 = 53,226.51 : x
  2. Step 2: Convert to fraction form
    88,696.88/133,082.21 = 53,226.51/x
  3. Step 3: Cross multiply
    88,696.88x = 133,082.21 × 53,226.51
  4. Step 4: Simplify right side
    88,696.88x = 7,083,501,581.39
  5. Step 5: Solve for x
    x = 7,083,501,581.39/88,696.88
  6. Step 6: Final answer
    x = 79,861.90

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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.