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Finding the Fourth Proportional to 339,127.20, 508,770.72 and 102,471.84

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Solution

The fourth proportional to 339,127.20, 508,770.72 and 102,471.84 is: 153,731.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,127.20 : 508,770.72 = 102,471.84 : x
  2. Step 2: Convert to fraction form
    339,127.20/508,770.72 = 102,471.84/x
  3. Step 3: Cross multiply
    339,127.20x = 508,770.72 × 102,471.84
  4. Step 4: Simplify right side
    339,127.20x = 52,134,671,816.52
  5. Step 5: Solve for x
    x = 52,134,671,816.52/339,127.20
  6. Step 6: Final answer
    x = 153,731.91

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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.