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Finding the Fourth Proportional to 239,716.08, 359,734.64 and 99,474.84

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Solution

The fourth proportional to 239,716.08, 359,734.64 and 99,474.84 is: 149,278.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,716.08 : 359,734.64 = 99,474.84 : x
  2. Step 2: Convert to fraction form
    239,716.08/359,734.64 = 99,474.84/x
  3. Step 3: Cross multiply
    239,716.08x = 359,734.64 × 99,474.84
  4. Step 4: Simplify right side
    239,716.08x = 35,784,545,756.46
  5. Step 5: Solve for x
    x = 35,784,545,756.46/239,716.08
  6. Step 6: Final answer
    x = 149,278.87

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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.