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Finding the Fourth Proportional to 242,035.80, 363,053.70 and 137,059.80

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Solution

The fourth proportional to 242,035.80, 363,053.70 and 137,059.80 is: 205,589.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,035.80 : 363,053.70 = 137,059.80 : x
  2. Step 2: Convert to fraction form
    242,035.80/363,053.70 = 137,059.80/x
  3. Step 3: Cross multiply
    242,035.80x = 363,053.70 × 137,059.80
  4. Step 4: Simplify right side
    242,035.80x = 49,760,067,511.26
  5. Step 5: Solve for x
    x = 49,760,067,511.26/242,035.80
  6. Step 6: Final answer
    x = 205,589.70

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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.