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Finding the Fourth Proportional to 101,712.99, 152,548.64 and 38,511.31

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Solution

The fourth proportional to 101,712.99, 152,548.64 and 38,511.31 is: 57,759.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,712.99 : 152,548.64 = 38,511.31 : x
  2. Step 2: Convert to fraction form
    101,712.99/152,548.64 = 38,511.31/x
  3. Step 3: Cross multiply
    101,712.99x = 152,548.64 × 38,511.31
  4. Step 4: Simplify right side
    101,712.99x = 5,874,847,391.19
  5. Step 5: Solve for x
    x = 5,874,847,391.19/101,712.99
  6. Step 6: Final answer
    x = 57,759.07

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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.