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Finding the Fourth Proportional to 229,272.33, 316,405.70 and 127,297.79

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Solution

The fourth proportional to 229,272.33, 316,405.70 and 127,297.79 is: 175,676.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,272.33 : 316,405.70 = 127,297.79 : x
  2. Step 2: Convert to fraction form
    229,272.33/316,405.70 = 127,297.79/x
  3. Step 3: Cross multiply
    229,272.33x = 316,405.70 × 127,297.79
  4. Step 4: Simplify right side
    229,272.33x = 40,277,746,507.93
  5. Step 5: Solve for x
    x = 40,277,746,507.93/229,272.33
  6. Step 6: Final answer
    x = 175,676.44

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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.