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Finding the Fourth Proportional to 95,978.47, 143,995.37 and 29,428.41

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Solution

The fourth proportional to 95,978.47, 143,995.37 and 29,428.41 is: 44,151.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,978.47 : 143,995.37 = 29,428.41 : x
  2. Step 2: Convert to fraction form
    95,978.47/143,995.37 = 29,428.41/x
  3. Step 3: Cross multiply
    95,978.47x = 143,995.37 × 29,428.41
  4. Step 4: Simplify right side
    95,978.47x = 4,237,555,344.84
  5. Step 5: Solve for x
    x = 4,237,555,344.84/95,978.47
  6. Step 6: Final answer
    x = 44,151.10

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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.