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Finding the Third Proportional to 76,347.75 and 163,981.50

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Solution

The third proportional to 76,347.75 and 163,981.50 is: 352,203.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,347.75 : 163,981.50 = 163,981.50 : x
  2. Step 2: Convert to fraction form
    76,347.75/163,981.50 = 163,981.50/x
  3. Step 3: Cross multiply
    76,347.75x = 163,981.50 × 163,981.50
  4. Step 4: Simplify right side
    76,347.75x = 26,889,932,342.25
  5. Step 5: Solve for x
    x = 26,889,932,342.25/76,347.75
  6. Step 6: Final answer
    x = 352,203.34

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.