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Finding the Fourth Proportional to 167,270.84, 230,728.77 and 99,239.66

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Solution

The fourth proportional to 167,270.84, 230,728.77 and 99,239.66 is: 136,888.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,270.84 : 230,728.77 = 99,239.66 : x
  2. Step 2: Convert to fraction form
    167,270.84/230,728.77 = 99,239.66/x
  3. Step 3: Cross multiply
    167,270.84x = 230,728.77 × 99,239.66
  4. Step 4: Simplify right side
    167,270.84x = 22,897,443,533.37
  5. Step 5: Solve for x
    x = 22,897,443,533.37/167,270.84
  6. Step 6: Final answer
    x = 136,888.44

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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.