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Finding the Fourth Proportional to 52,809,835.80, 79,214,753.70 and 50,896,648.20

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Solution

The fourth proportional to 52,809,835.80, 79,214,753.70 and 50,896,648.20 is: 76,344,972.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,809,835.80 : 79,214,753.70 = 50,896,648.20 : x
  2. Step 2: Convert to fraction form
    52,809,835.80/79,214,753.70 = 50,896,648.20/x
  3. Step 3: Cross multiply
    52,809,835.80x = 79,214,753.70 × 50,896,648.20
  4. Step 4: Simplify right side
    52,809,835.80x = 4,031,765,451,318,548.50
  5. Step 5: Solve for x
    x = 4,031,765,451,318,548.50/52,809,835.80
  6. Step 6: Final answer
    x = 76,344,972.30

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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.