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Finding the Fourth Proportional to 192,716.80, 288,844.80 and 99,174.40

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Solution

The fourth proportional to 192,716.80, 288,844.80 and 99,174.40 is: 148,643.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,716.80 : 288,844.80 = 99,174.40 : x
  2. Step 2: Convert to fraction form
    192,716.80/288,844.80 = 99,174.40/x
  3. Step 3: Cross multiply
    192,716.80x = 288,844.80 × 99,174.40
  4. Step 4: Simplify right side
    192,716.80x = 28,646,009,733.12
  5. Step 5: Solve for x
    x = 28,646,009,733.12/192,716.80
  6. Step 6: Final answer
    x = 148,643.03

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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.