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Finding the Fourth Proportional to 14,449,728.90, 21,678,207.30 and 10,198,200.90

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Solution

The fourth proportional to 14,449,728.90, 21,678,207.30 and 10,198,200.90 is: 15,299,851.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,449,728.90 : 21,678,207.30 = 10,198,200.90 : x
  2. Step 2: Convert to fraction form
    14,449,728.90/21,678,207.30 = 10,198,200.90/x
  3. Step 3: Cross multiply
    14,449,728.90x = 21,678,207.30 × 10,198,200.90
  4. Step 4: Simplify right side
    14,449,728.90x = 221,078,713,197,246.59
  5. Step 5: Solve for x
    x = 221,078,713,197,246.59/14,449,728.90
  6. Step 6: Final answer
    x = 15,299,851.97

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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.