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Finding the Fourth Proportional to 229,959.89, 344,925.99 and 85,837.97

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Solution

The fourth proportional to 229,959.89, 344,925.99 and 85,837.97 is: 128,751.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,959.89 : 344,925.99 = 85,837.97 : x
  2. Step 2: Convert to fraction form
    229,959.89/344,925.99 = 85,837.97/x
  3. Step 3: Cross multiply
    229,959.89x = 344,925.99 × 85,837.97
  4. Step 4: Simplify right side
    229,959.89x = 29,607,747,644.16
  5. Step 5: Solve for x
    x = 29,607,747,644.16/229,959.89
  6. Step 6: Final answer
    x = 128,751.79

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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.