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Finding the Third Proportional to 76,458 and 112,433

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Solution

The third proportional to 76,458 and 112,433 is: 165,334.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,458 : 112,433 = 112,433 : x
  2. Step 2: Convert to fraction form
    76,458/112,433 = 112,433/x
  3. Step 3: Cross multiply
    76,458x = 112,433 × 112,433
  4. Step 4: Simplify right side
    76,458x = 12,641,179,489
  5. Step 5: Solve for x
    x = 12,641,179,489/76,458
  6. Step 6: Final answer
    x = 165,334.95

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.