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Finding the Fourth Proportional to 99,562.68, 149,367.96 and 28,486.44

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Solution

The fourth proportional to 99,562.68, 149,367.96 and 28,486.44 is: 42,736.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,562.68 : 149,367.96 = 28,486.44 : x
  2. Step 2: Convert to fraction form
    99,562.68/149,367.96 = 28,486.44/x
  3. Step 3: Cross multiply
    99,562.68x = 149,367.96 × 28,486.44
  4. Step 4: Simplify right side
    99,562.68x = 4,254,961,430.46
  5. Step 5: Solve for x
    x = 4,254,961,430.46/99,562.68
  6. Step 6: Final answer
    x = 42,736.51

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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.