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Finding the Third Proportional to 66,787,581.38 and 102,167,552.81

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Solution

The third proportional to 66,787,581.38 and 102,167,552.81 is: 156,289,666.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,787,581.38 : 102,167,552.81 = 102,167,552.81 : x
  2. Step 2: Convert to fraction form
    66,787,581.38/102,167,552.81 = 102,167,552.81/x
  3. Step 3: Cross multiply
    66,787,581.38x = 102,167,552.81 × 102,167,552.81
  4. Step 4: Simplify right side
    66,787,581.38x = 10,438,208,847,694,976
  5. Step 5: Solve for x
    x = 10,438,208,847,694,976/66,787,581.38
  6. Step 6: Final answer
    x = 156,289,666.92

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.