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Finding the Fourth Proportional to 251,007.30, 376,527.30 and 82,482.54

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Solution

The fourth proportional to 251,007.30, 376,527.30 and 82,482.54 is: 123,729.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,007.30 : 376,527.30 = 82,482.54 : x
  2. Step 2: Convert to fraction form
    251,007.30/376,527.30 = 82,482.54/x
  3. Step 3: Cross multiply
    251,007.30x = 376,527.30 × 82,482.54
  4. Step 4: Simplify right side
    251,007.30x = 31,056,928,083.34
  5. Step 5: Solve for x
    x = 31,056,928,083.34/251,007.30
  6. Step 6: Final answer
    x = 123,729.18

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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.