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Finding the Fourth Proportional to 75,149.80, 103,699.74 and 44,929.24

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Solution

The fourth proportional to 75,149.80, 103,699.74 and 44,929.24 is: 61,998.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,149.80 : 103,699.74 = 44,929.24 : x
  2. Step 2: Convert to fraction form
    75,149.80/103,699.74 = 44,929.24/x
  3. Step 3: Cross multiply
    75,149.80x = 103,699.74 × 44,929.24
  4. Step 4: Simplify right side
    75,149.80x = 4,659,150,506.40
  5. Step 5: Solve for x
    x = 4,659,150,506.40/75,149.80
  6. Step 6: Final answer
    x = 61,998.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.