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Finding the Fourth Proportional to 122,576.69, 169,207.38 and 114,915.71

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Solution

The fourth proportional to 122,576.69, 169,207.38 and 114,915.71 is: 158,632.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,576.69 : 169,207.38 = 114,915.71 : x
  2. Step 2: Convert to fraction form
    122,576.69/169,207.38 = 114,915.71/x
  3. Step 3: Cross multiply
    122,576.69x = 169,207.38 × 114,915.71
  4. Step 4: Simplify right side
    122,576.69x = 19,444,586,632.96
  5. Step 5: Solve for x
    x = 19,444,586,632.96/122,576.69
  6. Step 6: Final answer
    x = 158,632.01

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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.