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Finding the Third Proportional to 77,911.88 and 116,867.81

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Solution

The third proportional to 77,911.88 and 116,867.81 is: 175,301.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,911.88 : 116,867.81 = 116,867.81 : x
  2. Step 2: Convert to fraction form
    77,911.88/116,867.81 = 116,867.81/x
  3. Step 3: Cross multiply
    77,911.88x = 116,867.81 × 116,867.81
  4. Step 4: Simplify right side
    77,911.88x = 13,658,085,598.54
  5. Step 5: Solve for x
    x = 13,658,085,598.54/77,911.88
  6. Step 6: Final answer
    x = 175,301.72

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.