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Finding the Third Proportional to 165,352 and 358,892

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Solution

The third proportional to 165,352 and 358,892 is: 778,965.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,352 : 358,892 = 358,892 : x
  2. Step 2: Convert to fraction form
    165,352/358,892 = 358,892/x
  3. Step 3: Cross multiply
    165,352x = 358,892 × 358,892
  4. Step 4: Simplify right side
    165,352x = 128,803,467,664
  5. Step 5: Solve for x
    x = 128,803,467,664/165,352
  6. Step 6: Final answer
    x = 778,965.28

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.