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Finding the Fourth Proportional to 95,421, 143,131.56 and 29,757

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Solution

The fourth proportional to 95,421, 143,131.56 and 29,757 is: 44,635.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,421 : 143,131.56 = 29,757 : x
  2. Step 2: Convert to fraction form
    95,421/143,131.56 = 29,757/x
  3. Step 3: Cross multiply
    95,421x = 143,131.56 × 29,757
  4. Step 4: Simplify right side
    95,421x = 4,259,165,830.92
  5. Step 5: Solve for x
    x = 4,259,165,830.92/95,421
  6. Step 6: Final answer
    x = 44,635.52

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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.