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Finding the Fourth Proportional to 502,753.46, 753,969.92 and 165,731.30

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Solution

The fourth proportional to 502,753.46, 753,969.92 and 165,731.30 is: 248,544.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,753.46 : 753,969.92 = 165,731.30 : x
  2. Step 2: Convert to fraction form
    502,753.46/753,969.92 = 165,731.30/x
  3. Step 3: Cross multiply
    502,753.46x = 753,969.92 × 165,731.30
  4. Step 4: Simplify right side
    502,753.46x = 124,956,410,403.99
  5. Step 5: Solve for x
    x = 124,956,410,403.99/502,753.46
  6. Step 6: Final answer
    x = 248,544.11

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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.