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Finding the Fourth Proportional to 98,892.56, 136,471.88 and 58,626.11

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Solution

The fourth proportional to 98,892.56, 136,471.88 and 58,626.11 is: 80,904.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,892.56 : 136,471.88 = 58,626.11 : x
  2. Step 2: Convert to fraction form
    98,892.56/136,471.88 = 58,626.11/x
  3. Step 3: Cross multiply
    98,892.56x = 136,471.88 × 58,626.11
  4. Step 4: Simplify right side
    98,892.56x = 8,000,814,912.99
  5. Step 5: Solve for x
    x = 8,000,814,912.99/98,892.56
  6. Step 6: Final answer
    x = 80,904.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.