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Finding the Fourth Proportional to 96,616.80, 144,919.13 and 30,051.81

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Solution

The fourth proportional to 96,616.80, 144,919.13 and 30,051.81 is: 45,075.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,616.80 : 144,919.13 = 30,051.81 : x
  2. Step 2: Convert to fraction form
    96,616.80/144,919.13 = 30,051.81/x
  3. Step 3: Cross multiply
    96,616.80x = 144,919.13 × 30,051.81
  4. Step 4: Simplify right side
    96,616.80x = 4,355,082,009.87
  5. Step 5: Solve for x
    x = 4,355,082,009.87/96,616.80
  6. Step 6: Final answer
    x = 45,075.83

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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.