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Finding the Fourth Proportional to 239,597.21, 359,357.72 and 79,659.84

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Solution

The fourth proportional to 239,597.21, 359,357.72 and 79,659.84 is: 119,477.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,597.21 : 359,357.72 = 79,659.84 : x
  2. Step 2: Convert to fraction form
    239,597.21/359,357.72 = 79,659.84/x
  3. Step 3: Cross multiply
    239,597.21x = 359,357.72 × 79,659.84
  4. Step 4: Simplify right side
    239,597.21x = 28,626,378,677.11
  5. Step 5: Solve for x
    x = 28,626,378,677.11/239,597.21
  6. Step 6: Final answer
    x = 119,477.09

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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.