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Finding the Fourth Proportional to 283,446,428.88, 425,169,648.78 and 68,035,676.88

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Solution

The fourth proportional to 283,446,428.88, 425,169,648.78 and 68,035,676.88 is: 102,053,516.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,446,428.88 : 425,169,648.78 = 68,035,676.88 : x
  2. Step 2: Convert to fraction form
    283,446,428.88/425,169,648.78 = 68,035,676.88/x
  3. Step 3: Cross multiply
    283,446,428.88x = 425,169,648.78 × 68,035,676.88
  4. Step 4: Simplify right side
    283,446,428.88x = 28,926,704,843,579,164
  5. Step 5: Solve for x
    x = 28,926,704,843,579,164/283,446,428.88
  6. Step 6: Final answer
    x = 102,053,516.63

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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.