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Finding the Third Proportional to 174,978.56 and 368,637.75

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Solution

The third proportional to 174,978.56 and 368,637.75 is: 776,631.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,978.56 : 368,637.75 = 368,637.75 : x
  2. Step 2: Convert to fraction form
    174,978.56/368,637.75 = 368,637.75/x
  3. Step 3: Cross multiply
    174,978.56x = 368,637.75 × 368,637.75
  4. Step 4: Simplify right side
    174,978.56x = 135,893,790,725.06
  5. Step 5: Solve for x
    x = 135,893,790,725.06/174,978.56
  6. Step 6: Final answer
    x = 776,631.08

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Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.