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Finding the Fourth Proportional to 98,263, 135,624.84 and 62,446

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Solution

The fourth proportional to 98,263, 135,624.84 and 62,446 is: 86,189.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,263 : 135,624.84 = 62,446 : x
  2. Step 2: Convert to fraction form
    98,263/135,624.84 = 62,446/x
  3. Step 3: Cross multiply
    98,263x = 135,624.84 × 62,446
  4. Step 4: Simplify right side
    98,263x = 8,469,228,758.64
  5. Step 5: Solve for x
    x = 8,469,228,758.64/98,263
  6. Step 6: Final answer
    x = 86,189.40

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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.