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Finding the Fourth Proportional to 63,906,645.40, 95,859,968.10 and 53,702,978.20

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Solution

The fourth proportional to 63,906,645.40, 95,859,968.10 and 53,702,978.20 is: 80,554,467.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,906,645.40 : 95,859,968.10 = 53,702,978.20 : x
  2. Step 2: Convert to fraction form
    63,906,645.40/95,859,968.10 = 53,702,978.20/x
  3. Step 3: Cross multiply
    63,906,645.40x = 95,859,968.10 × 53,702,978.20
  4. Step 4: Simplify right side
    63,906,645.40x = 5,147,965,777,126,995
  5. Step 5: Solve for x
    x = 5,147,965,777,126,995/63,906,645.40
  6. Step 6: Final answer
    x = 80,554,467.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.