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Finding the Fourth Proportional to 99,791.58, 149,763.51 and 36,671.52

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Solution

The fourth proportional to 99,791.58, 149,763.51 and 36,671.52 is: 55,035.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,791.58 : 149,763.51 = 36,671.52 : x
  2. Step 2: Convert to fraction form
    99,791.58/149,763.51 = 36,671.52/x
  3. Step 3: Cross multiply
    99,791.58x = 149,763.51 × 36,671.52
  4. Step 4: Simplify right side
    99,791.58x = 5,492,055,552.24
  5. Step 5: Solve for x
    x = 5,492,055,552.24/99,791.58
  6. Step 6: Final answer
    x = 55,035.26

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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.