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Finding the Fourth Proportional to 294,660.43, 406,634.21 and 167,336.93

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Solution

The fourth proportional to 294,660.43, 406,634.21 and 167,336.93 is: 230,926.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    294,660.43 : 406,634.21 = 167,336.93 : x
  2. Step 2: Convert to fraction form
    294,660.43/406,634.21 = 167,336.93/x
  3. Step 3: Cross multiply
    294,660.43x = 406,634.21 × 167,336.93
  4. Step 4: Simplify right side
    294,660.43x = 68,044,921,141.79
  5. Step 5: Solve for x
    x = 68,044,921,141.79/294,660.43
  6. Step 6: Final answer
    x = 230,926.57

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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.