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Finding the Fourth Proportional to 366,013.80, 548,583.30 and 188,429.40

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Solution

The fourth proportional to 366,013.80, 548,583.30 and 188,429.40 is: 282,418.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,013.80 : 548,583.30 = 188,429.40 : x
  2. Step 2: Convert to fraction form
    366,013.80/548,583.30 = 188,429.40/x
  3. Step 3: Cross multiply
    366,013.80x = 548,583.30 × 188,429.40
  4. Step 4: Simplify right side
    366,013.80x = 103,369,222,069.02
  5. Step 5: Solve for x
    x = 103,369,222,069.02/366,013.80
  6. Step 6: Final answer
    x = 282,418.92

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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.