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Finding the Third Proportional to 163,112 and 358,298

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Solution

The third proportional to 163,112 and 358,298 is: 787,050.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,112 : 358,298 = 358,298 : x
  2. Step 2: Convert to fraction form
    163,112/358,298 = 358,298/x
  3. Step 3: Cross multiply
    163,112x = 358,298 × 358,298
  4. Step 4: Simplify right side
    163,112x = 128,377,456,804
  5. Step 5: Solve for x
    x = 128,377,456,804/163,112
  6. Step 6: Final answer
    x = 787,050.96

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.