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Finding the Fourth Proportional to 59,337,905.20, 89,022,604.20 and 20,995,421.20

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Solution

The fourth proportional to 59,337,905.20, 89,022,604.20 and 20,995,421.20 is: 31,498,703.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,337,905.20 : 89,022,604.20 = 20,995,421.20 : x
  2. Step 2: Convert to fraction form
    59,337,905.20/89,022,604.20 = 20,995,421.20/x
  3. Step 3: Cross multiply
    59,337,905.20x = 89,022,604.20 × 20,995,421.20
  4. Step 4: Simplify right side
    59,337,905.20x = 1,869,067,071,499,889
  5. Step 5: Solve for x
    x = 1,869,067,071,499,889/59,337,905.20
  6. Step 6: Final answer
    x = 31,498,703.32

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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.