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Finding the Fourth Proportional to 40,469,063.90, 56,784,235.30 and 40,469,063.90

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Solution

The fourth proportional to 40,469,063.90, 56,784,235.30 and 40,469,063.90 is: 56,784,235.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,469,063.90 : 56,784,235.30 = 40,469,063.90 : x
  2. Step 2: Convert to fraction form
    40,469,063.90/56,784,235.30 = 40,469,063.90/x
  3. Step 3: Cross multiply
    40,469,063.90x = 56,784,235.30 × 40,469,063.90
  4. Step 4: Simplify right side
    40,469,063.90x = 2,298,004,846,868,335.50
  5. Step 5: Solve for x
    x = 2,298,004,846,868,335.50/40,469,063.90
  6. Step 6: Final answer
    x = 56,784,235.30

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.