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Finding the Fourth Proportional to 328,310.77, 492,359.52 and 125,896.24

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Solution

The fourth proportional to 328,310.77, 492,359.52 and 125,896.24 is: 188,803.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,310.77 : 492,359.52 = 125,896.24 : x
  2. Step 2: Convert to fraction form
    328,310.77/492,359.52 = 125,896.24/x
  3. Step 3: Cross multiply
    328,310.77x = 492,359.52 × 125,896.24
  4. Step 4: Simplify right side
    328,310.77x = 61,986,212,296.20
  5. Step 5: Solve for x
    x = 61,986,212,296.20/328,310.77
  6. Step 6: Final answer
    x = 188,803.47

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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.