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Finding the Third Proportional to 43,102,312 and 66,920,220

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Solution

The third proportional to 43,102,312 and 66,920,220 is: 103,899,666.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,102,312 : 66,920,220 = 66,920,220 : x
  2. Step 2: Convert to fraction form
    43,102,312/66,920,220 = 66,920,220/x
  3. Step 3: Cross multiply
    43,102,312x = 66,920,220 × 66,920,220
  4. Step 4: Simplify right side
    43,102,312x = 4,478,315,844,848,400
  5. Step 5: Solve for x
    x = 4,478,315,844,848,400/43,102,312
  6. Step 6: Final answer
    x = 103,899,666.56

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.