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Finding the Fourth Proportional to 14,651,190.40, 21,978,859.20 and 4,552,758.40

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Solution

The fourth proportional to 14,651,190.40, 21,978,859.20 and 4,552,758.40 is: 6,829,781.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,651,190.40 : 21,978,859.20 = 4,552,758.40 : x
  2. Step 2: Convert to fraction form
    14,651,190.40/21,978,859.20 = 4,552,758.40/x
  3. Step 3: Cross multiply
    14,651,190.40x = 21,978,859.20 × 4,552,758.40
  4. Step 4: Simplify right side
    14,651,190.40x = 100,064,435,845,217.28
  5. Step 5: Solve for x
    x = 100,064,435,845,217.28/14,651,190.40
  6. Step 6: Final answer
    x = 6,829,781.96

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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.