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Finding the Fourth Proportional to 167,407.04, 250,979.28 and 78,614.84

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Solution

The fourth proportional to 167,407.04, 250,979.28 and 78,614.84 is: 117,860.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,407.04 : 250,979.28 = 78,614.84 : x
  2. Step 2: Convert to fraction form
    167,407.04/250,979.28 = 78,614.84/x
  3. Step 3: Cross multiply
    167,407.04x = 250,979.28 × 78,614.84
  4. Step 4: Simplify right side
    167,407.04x = 19,730,695,940.52
  5. Step 5: Solve for x
    x = 19,730,695,940.52/167,407.04
  6. Step 6: Final answer
    x = 117,860.61

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.