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Finding the Third Proportional to 243,121.50 and 368,037

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Solution

The third proportional to 243,121.50 and 368,037 is: 557,133.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,121.50 : 368,037 = 368,037 : x
  2. Step 2: Convert to fraction form
    243,121.50/368,037 = 368,037/x
  3. Step 3: Cross multiply
    243,121.50x = 368,037 × 368,037
  4. Step 4: Simplify right side
    243,121.50x = 135,451,233,369
  5. Step 5: Solve for x
    x = 135,451,233,369/243,121.50
  6. Step 6: Final answer
    x = 557,133.92

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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.