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Finding the Fourth Proportional to 167,666.88, 251,516.76 and 61,079.80

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Solution

The fourth proportional to 167,666.88, 251,516.76 and 61,079.80 is: 91,625.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,666.88 : 251,516.76 = 61,079.80 : x
  2. Step 2: Convert to fraction form
    167,666.88/251,516.76 = 61,079.80/x
  3. Step 3: Cross multiply
    167,666.88x = 251,516.76 × 61,079.80
  4. Step 4: Simplify right side
    167,666.88x = 15,362,593,397.45
  5. Step 5: Solve for x
    x = 15,362,593,397.45/167,666.88
  6. Step 6: Final answer
    x = 91,625.69

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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.