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Finding the Third Proportional to 163,791 and 358,740

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Solution

The third proportional to 163,791 and 358,740 is: 785,723.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,791 : 358,740 = 358,740 : x
  2. Step 2: Convert to fraction form
    163,791/358,740 = 358,740/x
  3. Step 3: Cross multiply
    163,791x = 358,740 × 358,740
  4. Step 4: Simplify right side
    163,791x = 128,694,387,600
  5. Step 5: Solve for x
    x = 128,694,387,600/163,791
  6. Step 6: Final answer
    x = 785,723.19

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.