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Finding the Fourth Proportional to 167,490, 231,136.32 and 92,039.04

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Solution

The fourth proportional to 167,490, 231,136.32 and 92,039.04 is: 127,013.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,490 : 231,136.32 = 92,039.04 : x
  2. Step 2: Convert to fraction form
    167,490/231,136.32 = 92,039.04/x
  3. Step 3: Cross multiply
    167,490x = 231,136.32 × 92,039.04
  4. Step 4: Simplify right side
    167,490x = 21,273,565,001.93
  5. Step 5: Solve for x
    x = 21,273,565,001.93/167,490
  6. Step 6: Final answer
    x = 127,013.94

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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.