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Finding the Fourth Proportional to 226,297.89, 339,490.56 and 86,045.58

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Solution

The fourth proportional to 226,297.89, 339,490.56 and 86,045.58 is: 129,085.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,297.89 : 339,490.56 = 86,045.58 : x
  2. Step 2: Convert to fraction form
    226,297.89/339,490.56 = 86,045.58/x
  3. Step 3: Cross multiply
    226,297.89x = 339,490.56 × 86,045.58
  4. Step 4: Simplify right side
    226,297.89x = 29,211,662,139.72
  5. Step 5: Solve for x
    x = 29,211,662,139.72/226,297.89
  6. Step 6: Final answer
    x = 129,085.00

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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.