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Finding the Third Proportional to 76,685 and 118,448

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Solution

The third proportional to 76,685 and 118,448 is: 182,955.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,685 : 118,448 = 118,448 : x
  2. Step 2: Convert to fraction form
    76,685/118,448 = 118,448/x
  3. Step 3: Cross multiply
    76,685x = 118,448 × 118,448
  4. Step 4: Simplify right side
    76,685x = 14,029,928,704
  5. Step 5: Solve for x
    x = 14,029,928,704/76,685
  6. Step 6: Final answer
    x = 182,955.32

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.