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Finding the Fourth Proportional to 229,576.60, 316,706.38 and 153,131

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Solution

The fourth proportional to 229,576.60, 316,706.38 and 153,131 is: 211,247.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,576.60 : 316,706.38 = 153,131 : x
  2. Step 2: Convert to fraction form
    229,576.60/316,706.38 = 153,131/x
  3. Step 3: Cross multiply
    229,576.60x = 316,706.38 × 153,131
  4. Step 4: Simplify right side
    229,576.60x = 48,497,564,675.78
  5. Step 5: Solve for x
    x = 48,497,564,675.78/229,576.60
  6. Step 6: Final answer
    x = 211,247.86

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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.