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Finding the Fourth Proportional to 101,511.90, 152,174.97 and 39,135.42

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Solution

The fourth proportional to 101,511.90, 152,174.97 and 39,135.42 is: 58,667.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,511.90 : 152,174.97 = 39,135.42 : x
  2. Step 2: Convert to fraction form
    101,511.90/152,174.97 = 39,135.42/x
  3. Step 3: Cross multiply
    101,511.90x = 152,174.97 × 39,135.42
  4. Step 4: Simplify right side
    101,511.90x = 5,955,431,364.44
  5. Step 5: Solve for x
    x = 5,955,431,364.44/101,511.90
  6. Step 6: Final answer
    x = 58,667.32

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1.5x scale

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.