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Finding the Third Proportional to 118,731.38 and 256,406.63

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Solution

The third proportional to 118,731.38 and 256,406.63 is: 553,723.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,731.38 : 256,406.63 = 256,406.63 : x
  2. Step 2: Convert to fraction form
    118,731.38/256,406.63 = 256,406.63/x
  3. Step 3: Cross multiply
    118,731.38x = 256,406.63 × 256,406.63
  4. Step 4: Simplify right side
    118,731.38x = 65,744,357,343.89
  5. Step 5: Solve for x
    x = 65,744,357,343.89/118,731.38
  6. Step 6: Final answer
    x = 553,723.54

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.