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Finding the Fourth Proportional to 354,578,676.68, 531,444,864.52 and 165,029,728.80

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Solution

The fourth proportional to 354,578,676.68, 531,444,864.52 and 165,029,728.80 is: 247,347,648.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,578,676.68 : 531,444,864.52 = 165,029,728.80 : x
  2. Step 2: Convert to fraction form
    354,578,676.68/531,444,864.52 = 165,029,728.80/x
  3. Step 3: Cross multiply
    354,578,676.68x = 531,444,864.52 × 165,029,728.80
  4. Step 4: Simplify right side
    354,578,676.68x = 87,704,201,863,888,352
  5. Step 5: Solve for x
    x = 87,704,201,863,888,352/354,578,676.68
  6. Step 6: Final answer
    x = 247,347,648.44

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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.