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Finding the Fourth Proportional to 167,365.36, 251,090.53 and 77,472.87

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Solution

The fourth proportional to 167,365.36, 251,090.53 and 77,472.87 is: 116,228.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,365.36 : 251,090.53 = 77,472.87 : x
  2. Step 2: Convert to fraction form
    167,365.36/251,090.53 = 77,472.87/x
  3. Step 3: Cross multiply
    167,365.36x = 251,090.53 × 77,472.87
  4. Step 4: Simplify right side
    167,365.36x = 19,452,703,988.92
  5. Step 5: Solve for x
    x = 19,452,703,988.92/167,365.36
  6. Step 6: Final answer
    x = 116,228.97

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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.