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Finding the Third Proportional to 172,691,281.13 and 375,639,790.50

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Solution

The third proportional to 172,691,281.13 and 375,639,790.50 is: 817,095,404.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,691,281.13 : 375,639,790.50 = 375,639,790.50 : x
  2. Step 2: Convert to fraction form
    172,691,281.13/375,639,790.50 = 375,639,790.50/x
  3. Step 3: Cross multiply
    172,691,281.13x = 375,639,790.50 × 375,639,790.50
  4. Step 4: Simplify right side
    172,691,281.13x = 141,105,252,206,883,888
  5. Step 5: Solve for x
    x = 141,105,252,206,883,888/172,691,281.13
  6. Step 6: Final answer
    x = 817,095,404.51

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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.