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Finding the Fourth Proportional to 99,851,832.80, 149,777,749.20 and 99,851,832.80

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Solution

The fourth proportional to 99,851,832.80, 149,777,749.20 and 99,851,832.80 is: 149,777,749.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,851,832.80 : 149,777,749.20 = 99,851,832.80 : x
  2. Step 2: Convert to fraction form
    99,851,832.80/149,777,749.20 = 99,851,832.80/x
  3. Step 3: Cross multiply
    99,851,832.80x = 149,777,749.20 × 99,851,832.80
  4. Step 4: Simplify right side
    99,851,832.80x = 14,955,582,770,278,732
  5. Step 5: Solve for x
    x = 14,955,582,770,278,732/99,851,832.80
  6. Step 6: Final answer
    x = 149,777,749.20

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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.