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Finding the Fourth Proportional to 167,434.20, 251,191.80 and 49,109.40

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Solution

The fourth proportional to 167,434.20, 251,191.80 and 49,109.40 is: 73,675.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,434.20 : 251,191.80 = 49,109.40 : x
  2. Step 2: Convert to fraction form
    167,434.20/251,191.80 = 49,109.40/x
  3. Step 3: Cross multiply
    167,434.20x = 251,191.80 × 49,109.40
  4. Step 4: Simplify right side
    167,434.20x = 12,335,878,582.92
  5. Step 5: Solve for x
    x = 12,335,878,582.92/167,434.20
  6. Step 6: Final answer
    x = 73,675.98

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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.