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Finding the Fourth Proportional to 229,644.53, 316,891.49 and 127,663.78

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Solution

The fourth proportional to 229,644.53, 316,891.49 and 127,663.78 is: 176,166.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,644.53 : 316,891.49 = 127,663.78 : x
  2. Step 2: Convert to fraction form
    229,644.53/316,891.49 = 127,663.78/x
  3. Step 3: Cross multiply
    229,644.53x = 316,891.49 × 127,663.78
  4. Step 4: Simplify right side
    229,644.53x = 40,455,564,680.11
  5. Step 5: Solve for x
    x = 40,455,564,680.11/229,644.53
  6. Step 6: Final answer
    x = 176,166.03

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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.