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Finding the Fourth Proportional to 8,092,652.20, 12,138,978.30 and 2,109,020.20

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Solution

The fourth proportional to 8,092,652.20, 12,138,978.30 and 2,109,020.20 is: 3,163,530.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,092,652.20 : 12,138,978.30 = 2,109,020.20 : x
  2. Step 2: Convert to fraction form
    8,092,652.20/12,138,978.30 = 2,109,020.20/x
  3. Step 3: Cross multiply
    8,092,652.20x = 12,138,978.30 × 2,109,020.20
  4. Step 4: Simplify right side
    8,092,652.20x = 25,601,350,442,061.66
  5. Step 5: Solve for x
    x = 25,601,350,442,061.66/8,092,652.20
  6. Step 6: Final answer
    x = 3,163,530.30

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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.