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Finding the Fourth Proportional to 339,902.16, 509,823.76 and 159,944.88

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Solution

The fourth proportional to 339,902.16, 509,823.76 and 159,944.88 is: 239,903.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,902.16 : 509,823.76 = 159,944.88 : x
  2. Step 2: Convert to fraction form
    339,902.16/509,823.76 = 159,944.88/x
  3. Step 3: Cross multiply
    339,902.16x = 509,823.76 × 159,944.88
  4. Step 4: Simplify right side
    339,902.16x = 81,543,700,114.35
  5. Step 5: Solve for x
    x = 81,543,700,114.35/339,902.16
  6. Step 6: Final answer
    x = 239,903.45

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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.