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Finding the Third Proportional to 66,992,452 and 145,114,316

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Solution

The third proportional to 66,992,452 and 145,114,316 is: 314,336,377.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,992,452 : 145,114,316 = 145,114,316 : x
  2. Step 2: Convert to fraction form
    66,992,452/145,114,316 = 145,114,316/x
  3. Step 3: Cross multiply
    66,992,452x = 145,114,316 × 145,114,316
  4. Step 4: Simplify right side
    66,992,452x = 21,058,164,708,147,856
  5. Step 5: Solve for x
    x = 21,058,164,708,147,856/66,992,452
  6. Step 6: Final answer
    x = 314,336,377.90

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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.