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Finding the Fourth Proportional to 95,451.30, 143,193.15 and 28,890.90

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Solution

The fourth proportional to 95,451.30, 143,193.15 and 28,890.90 is: 43,341.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,451.30 : 143,193.15 = 28,890.90 : x
  2. Step 2: Convert to fraction form
    95,451.30/143,193.15 = 28,890.90/x
  3. Step 3: Cross multiply
    95,451.30x = 143,193.15 × 28,890.90
  4. Step 4: Simplify right side
    95,451.30x = 4,136,978,977.34
  5. Step 5: Solve for x
    x = 4,136,978,977.34/95,451.30
  6. Step 6: Final answer
    x = 43,341.25

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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.