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Finding the Fourth Proportional to 229,488.79, 316,693.92 and 127,513.84

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Solution

The fourth proportional to 229,488.79, 316,693.92 and 127,513.84 is: 175,968.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,488.79 : 316,693.92 = 127,513.84 : x
  2. Step 2: Convert to fraction form
    229,488.79/316,693.92 = 127,513.84/x
  3. Step 3: Cross multiply
    229,488.79x = 316,693.92 × 127,513.84
  4. Step 4: Simplify right side
    229,488.79x = 40,382,857,843.85
  5. Step 5: Solve for x
    x = 40,382,857,843.85/229,488.79
  6. Step 6: Final answer
    x = 175,968.76

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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.