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Finding the Fourth Proportional to 10,936,299.20, 16,404,448.80 and 10,306,443.20

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Solution

The fourth proportional to 10,936,299.20, 16,404,448.80 and 10,306,443.20 is: 15,459,664.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,936,299.20 : 16,404,448.80 = 10,306,443.20 : x
  2. Step 2: Convert to fraction form
    10,936,299.20/16,404,448.80 = 10,306,443.20/x
  3. Step 3: Cross multiply
    10,936,299.20x = 16,404,448.80 × 10,306,443.20
  4. Step 4: Simplify right side
    10,936,299.20x = 169,071,519,784,508.16
  5. Step 5: Solve for x
    x = 169,071,519,784,508.16/10,936,299.20
  6. Step 6: Final answer
    x = 15,459,664.80

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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.