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Finding the Fourth Proportional to 335,145.03, 502,713.15 and 82,427.70

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Solution

The fourth proportional to 335,145.03, 502,713.15 and 82,427.70 is: 123,640.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,145.03 : 502,713.15 = 82,427.70 : x
  2. Step 2: Convert to fraction form
    335,145.03/502,713.15 = 82,427.70/x
  3. Step 3: Cross multiply
    335,145.03x = 502,713.15 × 82,427.70
  4. Step 4: Simplify right side
    335,145.03x = 41,437,488,714.26
  5. Step 5: Solve for x
    x = 41,437,488,714.26/335,145.03
  6. Step 6: Final answer
    x = 123,640.47

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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.