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Finding the Third Proportional to 111,928.50 and 243,330.75

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Solution

The third proportional to 111,928.50 and 243,330.75 is: 528,997.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,928.50 : 243,330.75 = 243,330.75 : x
  2. Step 2: Convert to fraction form
    111,928.50/243,330.75 = 243,330.75/x
  3. Step 3: Cross multiply
    111,928.50x = 243,330.75 × 243,330.75
  4. Step 4: Simplify right side
    111,928.50x = 59,209,853,895.56
  5. Step 5: Solve for x
    x = 59,209,853,895.56/111,928.50
  6. Step 6: Final answer
    x = 528,997.12

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.