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Finding the Fourth Proportional to 100,391.33, 150,538.95 and 58,283.06

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Solution

The fourth proportional to 100,391.33, 150,538.95 and 58,283.06 is: 87,396.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,391.33 : 150,538.95 = 58,283.06 : x
  2. Step 2: Convert to fraction form
    100,391.33/150,538.95 = 58,283.06/x
  3. Step 3: Cross multiply
    100,391.33x = 150,538.95 × 58,283.06
  4. Step 4: Simplify right side
    100,391.33x = 8,773,869,902.49
  5. Step 5: Solve for x
    x = 8,773,869,902.49/100,391.33
  6. Step 6: Final answer
    x = 87,396.69

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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.