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Finding the Fourth Proportional to 64,784,452.80, 97,102,029.60 and 26,420,779.20

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Solution

The fourth proportional to 64,784,452.80, 97,102,029.60 and 26,420,779.20 is: 39,600,724.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,784,452.80 : 97,102,029.60 = 26,420,779.20 : x
  2. Step 2: Convert to fraction form
    64,784,452.80/97,102,029.60 = 26,420,779.20/x
  3. Step 3: Cross multiply
    64,784,452.80x = 97,102,029.60 × 26,420,779.20
  4. Step 4: Simplify right side
    64,784,452.80x = 2,565,511,283,933,464
  5. Step 5: Solve for x
    x = 2,565,511,283,933,464/64,784,452.80
  6. Step 6: Final answer
    x = 39,600,724.76

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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.