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Finding the Fourth Proportional to 158,713, 238,136.26 and 98,791.58

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Solution

The fourth proportional to 158,713, 238,136.26 and 98,791.58 is: 148,228.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,713 : 238,136.26 = 98,791.58 : x
  2. Step 2: Convert to fraction form
    158,713/238,136.26 = 98,791.58/x
  3. Step 3: Cross multiply
    158,713x = 238,136.26 × 98,791.58
  4. Step 4: Simplify right side
    158,713x = 23,525,857,380.69
  5. Step 5: Solve for x
    x = 23,525,857,380.69/158,713
  6. Step 6: Final answer
    x = 148,228.93

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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.