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Finding the Fourth Proportional to 229,420.58, 316,650.99 and 127,481.06

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Solution

The fourth proportional to 229,420.58, 316,650.99 and 127,481.06 is: 175,951.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,420.58 : 316,650.99 = 127,481.06 : x
  2. Step 2: Convert to fraction form
    229,420.58/316,650.99 = 127,481.06/x
  3. Step 3: Cross multiply
    229,420.58x = 316,650.99 × 127,481.06
  4. Step 4: Simplify right side
    229,420.58x = 40,367,003,855.25
  5. Step 5: Solve for x
    x = 40,367,003,855.25/229,420.58
  6. Step 6: Final answer
    x = 175,951.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.