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Finding the Third Proportional to 98,153,404 and 212,664,816

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Solution

The third proportional to 98,153,404 and 212,664,816 is: 460,771,833.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,153,404 : 212,664,816 = 212,664,816 : x
  2. Step 2: Convert to fraction form
    98,153,404/212,664,816 = 212,664,816/x
  3. Step 3: Cross multiply
    98,153,404x = 212,664,816 × 212,664,816
  4. Step 4: Simplify right side
    98,153,404x = 45,226,323,964,313,856
  5. Step 5: Solve for x
    x = 45,226,323,964,313,856/98,153,404
  6. Step 6: Final answer
    x = 460,771,833.90

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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.