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Finding the Fourth Proportional to 98,364, 135,693.72 and 62,049

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Solution

The fourth proportional to 98,364, 135,693.72 and 62,049 is: 85,596.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,364 : 135,693.72 = 62,049 : x
  2. Step 2: Convert to fraction form
    98,364/135,693.72 = 62,049/x
  3. Step 3: Cross multiply
    98,364x = 135,693.72 × 62,049
  4. Step 4: Simplify right side
    98,364x = 8,419,659,632.28
  5. Step 5: Solve for x
    x = 8,419,659,632.28/98,364
  6. Step 6: Final answer
    x = 85,596.96

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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.