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Finding the Third Proportional to 172,922,129.50 and 376,547,508.50

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Solution

The third proportional to 172,922,129.50 and 376,547,508.50 is: 819,953,042.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,922,129.50 : 376,547,508.50 = 376,547,508.50 : x
  2. Step 2: Convert to fraction form
    172,922,129.50/376,547,508.50 = 376,547,508.50/x
  3. Step 3: Cross multiply
    172,922,129.50x = 376,547,508.50 × 376,547,508.50
  4. Step 4: Simplify right side
    172,922,129.50x = 141,788,026,157,557,568
  5. Step 5: Solve for x
    x = 141,788,026,157,557,568/172,922,129.50
  6. Step 6: Final answer
    x = 819,953,042.26

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.