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Finding the Third Proportional to 98,730,816 and 212,633,820

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Solution

The third proportional to 98,730,816 and 212,633,820 is: 457,943,560.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,730,816 : 212,633,820 = 212,633,820 : x
  2. Step 2: Convert to fraction form
    98,730,816/212,633,820 = 212,633,820/x
  3. Step 3: Cross multiply
    98,730,816x = 212,633,820 × 212,633,820
  4. Step 4: Simplify right side
    98,730,816x = 45,213,141,407,792,400
  5. Step 5: Solve for x
    x = 45,213,141,407,792,400/98,730,816
  6. Step 6: Final answer
    x = 457,943,560.48

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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.