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Finding the Fourth Proportional to 242,597.40, 363,896.10 and 216,936.60

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Solution

The fourth proportional to 242,597.40, 363,896.10 and 216,936.60 is: 325,404.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,597.40 : 363,896.10 = 216,936.60 : x
  2. Step 2: Convert to fraction form
    242,597.40/363,896.10 = 216,936.60/x
  3. Step 3: Cross multiply
    242,597.40x = 363,896.10 × 216,936.60
  4. Step 4: Simplify right side
    242,597.40x = 78,942,382,687.26
  5. Step 5: Solve for x
    x = 78,942,382,687.26/242,597.40
  6. Step 6: Final answer
    x = 325,404.90

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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.