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Finding the Third Proportional to 76,428 and 110,086

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Solution

The third proportional to 76,428 and 110,086 is: 158,566.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,428 : 110,086 = 110,086 : x
  2. Step 2: Convert to fraction form
    76,428/110,086 = 110,086/x
  3. Step 3: Cross multiply
    76,428x = 110,086 × 110,086
  4. Step 4: Simplify right side
    76,428x = 12,118,927,396
  5. Step 5: Solve for x
    x = 12,118,927,396/76,428
  6. Step 6: Final answer
    x = 158,566.59

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Why These Related Problems?

These problems maintain the same ratio (1.44) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.