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Finding the Fourth Proportional to 30,337,218.80, 45,505,828.20 and 30,337,218.80

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Solution

The fourth proportional to 30,337,218.80, 45,505,828.20 and 30,337,218.80 is: 45,505,828.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,337,218.80 : 45,505,828.20 = 30,337,218.80 : x
  2. Step 2: Convert to fraction form
    30,337,218.80/45,505,828.20 = 30,337,218.80/x
  3. Step 3: Cross multiply
    30,337,218.80x = 45,505,828.20 × 30,337,218.80
  4. Step 4: Simplify right side
    30,337,218.80x = 1,380,520,266,778,610.25
  5. Step 5: Solve for x
    x = 1,380,520,266,778,610.25/30,337,218.80
  6. Step 6: Final answer
    x = 45,505,828.20

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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.