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Finding the Fourth Proportional to 269,676,019.70, 404,514,029.55 and 155,014,234.10

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Solution

The fourth proportional to 269,676,019.70, 404,514,029.55 and 155,014,234.10 is: 232,521,351.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,676,019.70 : 404,514,029.55 = 155,014,234.10 : x
  2. Step 2: Convert to fraction form
    269,676,019.70/404,514,029.55 = 155,014,234.10/x
  3. Step 3: Cross multiply
    269,676,019.70x = 404,514,029.55 × 155,014,234.10
  4. Step 4: Simplify right side
    269,676,019.70x = 62,705,432,473,398,016
  5. Step 5: Solve for x
    x = 62,705,432,473,398,016/269,676,019.70
  6. Step 6: Final answer
    x = 232,521,351.15

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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.