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Finding the Fourth Proportional to 89,486.16, 134,255.16 and 36,868.56

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Solution

The fourth proportional to 89,486.16, 134,255.16 and 36,868.56 is: 55,313.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,486.16 : 134,255.16 = 36,868.56 : x
  2. Step 2: Convert to fraction form
    89,486.16/134,255.16 = 36,868.56/x
  3. Step 3: Cross multiply
    89,486.16x = 134,255.16 × 36,868.56
  4. Step 4: Simplify right side
    89,486.16x = 4,949,794,421.77
  5. Step 5: Solve for x
    x = 4,949,794,421.77/89,486.16
  6. Step 6: Final answer
    x = 55,313.52

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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.