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Finding the Third Proportional to 98,421 and 152,817

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Solution

The third proportional to 98,421 and 152,817 is: 237,276.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,421 : 152,817 = 152,817 : x
  2. Step 2: Convert to fraction form
    98,421/152,817 = 152,817/x
  3. Step 3: Cross multiply
    98,421x = 152,817 × 152,817
  4. Step 4: Simplify right side
    98,421x = 23,353,035,489
  5. Step 5: Solve for x
    x = 23,353,035,489/98,421
  6. Step 6: Final answer
    x = 237,276.96

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.