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Finding the Fourth Proportional to 269,567,992.40, 404,351,988.60 and 97,071,429.20

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Solution

The fourth proportional to 269,567,992.40, 404,351,988.60 and 97,071,429.20 is: 145,607,143.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,567,992.40 : 404,351,988.60 = 97,071,429.20 : x
  2. Step 2: Convert to fraction form
    269,567,992.40/404,351,988.60 = 97,071,429.20/x
  3. Step 3: Cross multiply
    269,567,992.40x = 404,351,988.60 × 97,071,429.20
  4. Step 4: Simplify right side
    269,567,992.40x = 39,251,025,433,264,112
  5. Step 5: Solve for x
    x = 39,251,025,433,264,112/269,567,992.40
  6. Step 6: Final answer
    x = 145,607,143.80

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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.