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Finding the Fourth Proportional to 20,161,508.70, 30,242,263.06 and 20,161,508.70

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Solution

The fourth proportional to 20,161,508.70, 30,242,263.06 and 20,161,508.70 is: 30,242,263.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,161,508.70 : 30,242,263.06 = 20,161,508.70 : x
  2. Step 2: Convert to fraction form
    20,161,508.70/30,242,263.06 = 20,161,508.70/x
  3. Step 3: Cross multiply
    20,161,508.70x = 30,242,263.06 × 20,161,508.70
  4. Step 4: Simplify right side
    20,161,508.70x = 609,729,649,791,878.62
  5. Step 5: Solve for x
    x = 609,729,649,791,878.62/20,161,508.70
  6. Step 6: Final answer
    x = 30,242,263.06

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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.