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Finding the Fourth Proportional to 339,371.78, 508,282.64 and 162,003.35

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Solution

The fourth proportional to 339,371.78, 508,282.64 and 162,003.35 is: 242,635.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,371.78 : 508,282.64 = 162,003.35 : x
  2. Step 2: Convert to fraction form
    339,371.78/508,282.64 = 162,003.35/x
  3. Step 3: Cross multiply
    339,371.78x = 508,282.64 × 162,003.35
  4. Step 4: Simplify right side
    339,371.78x = 82,343,490,426.84
  5. Step 5: Solve for x
    x = 82,343,490,426.84/339,371.78
  6. Step 6: Final answer
    x = 242,635.05

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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.