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Finding the Fourth Proportional to 48,113,998.20, 72,170,997.30 and 48,113,998.20

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Solution

The fourth proportional to 48,113,998.20, 72,170,997.30 and 48,113,998.20 is: 72,170,997.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,113,998.20 : 72,170,997.30 = 48,113,998.20 : x
  2. Step 2: Convert to fraction form
    48,113,998.20/72,170,997.30 = 48,113,998.20/x
  3. Step 3: Cross multiply
    48,113,998.20x = 72,170,997.30 × 48,113,998.20
  4. Step 4: Simplify right side
    48,113,998.20x = 3,472,435,234,184,405
  5. Step 5: Solve for x
    x = 3,472,435,234,184,405/48,113,998.20
  6. Step 6: Final answer
    x = 72,170,997.30

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Similar ratio
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1.5x scale

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.