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Finding the Third Proportional to 172,679,711.63 and 265,689,046.69

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Solution

The third proportional to 172,679,711.63 and 265,689,046.69 is: 408,795,386.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,679,711.63 : 265,689,046.69 = 265,689,046.69 : x
  2. Step 2: Convert to fraction form
    172,679,711.63/265,689,046.69 = 265,689,046.69/x
  3. Step 3: Cross multiply
    172,679,711.63x = 265,689,046.69 × 265,689,046.69
  4. Step 4: Simplify right side
    172,679,711.63x = 70,590,669,529,712,552
  5. Step 5: Solve for x
    x = 70,590,669,529,712,552/172,679,711.63
  6. Step 6: Final answer
    x = 408,795,386.94

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.