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Finding the Fourth Proportional to 335,122.33, 502,679.12 and 82,405.01

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Solution

The fourth proportional to 335,122.33, 502,679.12 and 82,405.01 is: 123,606.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,122.33 : 502,679.12 = 82,405.01 : x
  2. Step 2: Convert to fraction form
    335,122.33/502,679.12 = 82,405.01/x
  3. Step 3: Cross multiply
    335,122.33x = 502,679.12 × 82,405.01
  4. Step 4: Simplify right side
    335,122.33x = 41,423,278,275.81
  5. Step 5: Solve for x
    x = 41,423,278,275.81/335,122.33
  6. Step 6: Final answer
    x = 123,606.44

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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.