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Finding the Fourth Proportional to 269,567,987.90, 404,351,981.85 and 97,071,424.70

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Solution

The fourth proportional to 269,567,987.90, 404,351,981.85 and 97,071,424.70 is: 145,607,137.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,567,987.90 : 404,351,981.85 = 97,071,424.70 : x
  2. Step 2: Convert to fraction form
    269,567,987.90/404,351,981.85 = 97,071,424.70/x
  3. Step 3: Cross multiply
    269,567,987.90x = 404,351,981.85 × 97,071,424.70
  4. Step 4: Simplify right side
    269,567,987.90x = 39,251,022,958,448,048
  5. Step 5: Solve for x
    x = 39,251,022,958,448,048/269,567,987.90
  6. Step 6: Final answer
    x = 145,607,137.05

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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.