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Finding the Fourth Proportional to 29,892,169.80, 44,848,752.30 and 12,858,064.20

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Solution

The fourth proportional to 29,892,169.80, 44,848,752.30 and 12,858,064.20 is: 19,291,611.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,892,169.80 : 44,848,752.30 = 12,858,064.20 : x
  2. Step 2: Convert to fraction form
    29,892,169.80/44,848,752.30 = 12,858,064.20/x
  3. Step 3: Cross multiply
    29,892,169.80x = 44,848,752.30 × 12,858,064.20
  4. Step 4: Simplify right side
    29,892,169.80x = 576,668,136,363,297.62
  5. Step 5: Solve for x
    x = 576,668,136,363,297.62/29,892,169.80
  6. Step 6: Final answer
    x = 19,291,611.82

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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.