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Finding the Fourth Proportional to 101,514.90, 152,179.47 and 39,138.42

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Solution

The fourth proportional to 101,514.90, 152,179.47 and 39,138.42 is: 58,671.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,514.90 : 152,179.47 = 39,138.42 : x
  2. Step 2: Convert to fraction form
    101,514.90/152,179.47 = 39,138.42/x
  3. Step 3: Cross multiply
    101,514.90x = 152,179.47 × 39,138.42
  4. Step 4: Simplify right side
    101,514.90x = 5,956,064,012.24
  5. Step 5: Solve for x
    x = 5,956,064,012.24/101,514.90
  6. Step 6: Final answer
    x = 58,671.82

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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.