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Finding the Fourth Proportional to 52,652,402.20, 78,978,603.30 and 27,143,234.20

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Solution

The fourth proportional to 52,652,402.20, 78,978,603.30 and 27,143,234.20 is: 40,714,851.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,652,402.20 : 78,978,603.30 = 27,143,234.20 : x
  2. Step 2: Convert to fraction form
    52,652,402.20/78,978,603.30 = 27,143,234.20/x
  3. Step 3: Cross multiply
    52,652,402.20x = 78,978,603.30 × 27,143,234.20
  4. Step 4: Simplify right side
    52,652,402.20x = 2,143,734,726,160,792.75
  5. Step 5: Solve for x
    x = 2,143,734,726,160,792.75/52,652,402.20
  6. Step 6: Final answer
    x = 40,714,851.30

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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.