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Finding the Third Proportional to 153,408,859.88 and 329,585,847.75

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Solution

The third proportional to 153,408,859.88 and 329,585,847.75 is: 708,087,076.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,408,859.88 : 329,585,847.75 = 329,585,847.75 : x
  2. Step 2: Convert to fraction form
    153,408,859.88/329,585,847.75 = 329,585,847.75/x
  3. Step 3: Cross multiply
    153,408,859.88x = 329,585,847.75 × 329,585,847.75
  4. Step 4: Simplify right side
    153,408,859.88x = 108,626,831,037,086,176
  5. Step 5: Solve for x
    x = 108,626,831,037,086,176/153,408,859.88
  6. Step 6: Final answer
    x = 708,087,076.10

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.