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Finding the Third Proportional to 56,756.44 and 123,489

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Solution

The third proportional to 56,756.44 and 123,489 is: 268,683.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,756.44 : 123,489 = 123,489 : x
  2. Step 2: Convert to fraction form
    56,756.44/123,489 = 123,489/x
  3. Step 3: Cross multiply
    56,756.44x = 123,489 × 123,489
  4. Step 4: Simplify right side
    56,756.44x = 15,249,533,121
  5. Step 5: Solve for x
    x = 15,249,533,121/56,756.44
  6. Step 6: Final answer
    x = 268,683.76

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.