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Finding the Fourth Proportional to 52,783,203.80, 79,174,805.70 and 45,476,874.20

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Solution

The fourth proportional to 52,783,203.80, 79,174,805.70 and 45,476,874.20 is: 68,215,311.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,783,203.80 : 79,174,805.70 = 45,476,874.20 : x
  2. Step 2: Convert to fraction form
    52,783,203.80/79,174,805.70 = 45,476,874.20/x
  3. Step 3: Cross multiply
    52,783,203.80x = 79,174,805.70 × 45,476,874.20
  4. Step 4: Simplify right side
    52,783,203.80x = 3,600,622,678,628,343.50
  5. Step 5: Solve for x
    x = 3,600,622,678,628,343.50/52,783,203.80
  6. Step 6: Final answer
    x = 68,215,311.30

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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.