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Finding the Third Proportional to 140,985,453 and 215,530,434

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Solution

The third proportional to 140,985,453 and 215,530,434 is: 329,490,504.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,985,453 : 215,530,434 = 215,530,434 : x
  2. Step 2: Convert to fraction form
    140,985,453/215,530,434 = 215,530,434/x
  3. Step 3: Cross multiply
    140,985,453x = 215,530,434 × 215,530,434
  4. Step 4: Simplify right side
    140,985,453x = 46,453,367,980,228,352
  5. Step 5: Solve for x
    x = 46,453,367,980,228,352/140,985,453
  6. Step 6: Final answer
    x = 329,490,504.10

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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.