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Finding the Fourth Proportional to 227,640.65, 314,161.47 and 125,685.68

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Solution

The fourth proportional to 227,640.65, 314,161.47 and 125,685.68 is: 173,455.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,640.65 : 314,161.47 = 125,685.68 : x
  2. Step 2: Convert to fraction form
    227,640.65/314,161.47 = 125,685.68/x
  3. Step 3: Cross multiply
    227,640.65x = 314,161.47 × 125,685.68
  4. Step 4: Simplify right side
    227,640.65x = 39,485,596,415.94
  5. Step 5: Solve for x
    x = 39,485,596,415.94/227,640.65
  6. Step 6: Final answer
    x = 173,455.83

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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.