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Finding the Third Proportional to 74,332.50 and 114,777

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Solution

The third proportional to 74,332.50 and 114,777 is: 177,227.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,332.50 : 114,777 = 114,777 : x
  2. Step 2: Convert to fraction form
    74,332.50/114,777 = 114,777/x
  3. Step 3: Cross multiply
    74,332.50x = 114,777 × 114,777
  4. Step 4: Simplify right side
    74,332.50x = 13,173,759,729
  5. Step 5: Solve for x
    x = 13,173,759,729/74,332.50
  6. Step 6: Final answer
    x = 177,227.45

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.