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Finding the Fourth Proportional to 96,121.90, 144,139.65 and 36,937.90

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Solution

The fourth proportional to 96,121.90, 144,139.65 and 36,937.90 is: 55,390.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,121.90 : 144,139.65 = 36,937.90 : x
  2. Step 2: Convert to fraction form
    96,121.90/144,139.65 = 36,937.90/x
  3. Step 3: Cross multiply
    96,121.90x = 144,139.65 × 36,937.90
  4. Step 4: Simplify right side
    96,121.90x = 5,324,215,977.74
  5. Step 5: Solve for x
    x = 5,324,215,977.74/96,121.90
  6. Step 6: Final answer
    x = 55,390.25

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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.