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Finding the Fourth Proportional to 66,051,682.80, 99,077,524.20 and 52,446,793.20

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Solution

The fourth proportional to 66,051,682.80, 99,077,524.20 and 52,446,793.20 is: 78,670,189.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,051,682.80 : 99,077,524.20 = 52,446,793.20 : x
  2. Step 2: Convert to fraction form
    66,051,682.80/99,077,524.20 = 52,446,793.20/x
  3. Step 3: Cross multiply
    66,051,682.80x = 99,077,524.20 × 52,446,793.20
  4. Step 4: Simplify right side
    66,051,682.80x = 5,196,298,422,485,396
  5. Step 5: Solve for x
    x = 5,196,298,422,485,396/66,051,682.80
  6. Step 6: Final answer
    x = 78,670,189.80

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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.