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Finding the Fourth Proportional to 336,715.80, 505,656.90 and 179,251.80

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Solution

The fourth proportional to 336,715.80, 505,656.90 and 179,251.80 is: 269,188.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,715.80 : 505,656.90 = 179,251.80 : x
  2. Step 2: Convert to fraction form
    336,715.80/505,656.90 = 179,251.80/x
  3. Step 3: Cross multiply
    336,715.80x = 505,656.90 × 179,251.80
  4. Step 4: Simplify right side
    336,715.80x = 90,639,909,507.42
  5. Step 5: Solve for x
    x = 90,639,909,507.42/336,715.80
  6. Step 6: Final answer
    x = 269,188.17

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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.