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Finding the Third Proportional to 70,624 and 112,416

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Solution

The third proportional to 70,624 and 112,416 is: 178,938.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,624 : 112,416 = 112,416 : x
  2. Step 2: Convert to fraction form
    70,624/112,416 = 112,416/x
  3. Step 3: Cross multiply
    70,624x = 112,416 × 112,416
  4. Step 4: Simplify right side
    70,624x = 12,637,357,056
  5. Step 5: Solve for x
    x = 12,637,357,056/70,624
  6. Step 6: Final answer
    x = 178,938.56

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.