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Finding the Fourth Proportional to 339,959.04, 509,938.56 and 161,926.56

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Solution

The fourth proportional to 339,959.04, 509,938.56 and 161,926.56 is: 242,889.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,959.04 : 509,938.56 = 161,926.56 : x
  2. Step 2: Convert to fraction form
    339,959.04/509,938.56 = 161,926.56/x
  3. Step 3: Cross multiply
    339,959.04x = 509,938.56 × 161,926.56
  4. Step 4: Simplify right side
    339,959.04x = 82,572,596,832.15
  5. Step 5: Solve for x
    x = 82,572,596,832.15/339,959.04
  6. Step 6: Final answer
    x = 242,889.84

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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.