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Finding the Third Proportional to 77,242.50 and 116,259.75

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Solution

The third proportional to 77,242.50 and 116,259.75 is: 174,985.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,242.50 : 116,259.75 = 116,259.75 : x
  2. Step 2: Convert to fraction form
    77,242.50/116,259.75 = 116,259.75/x
  3. Step 3: Cross multiply
    77,242.50x = 116,259.75 × 116,259.75
  4. Step 4: Simplify right side
    77,242.50x = 13,516,329,470.06
  5. Step 5: Solve for x
    x = 13,516,329,470.06/77,242.50
  6. Step 6: Final answer
    x = 174,985.66

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.