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Finding the Fourth Proportional to 144,338.69, 199,179.32 and 79,804.17

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Solution

The fourth proportional to 144,338.69, 199,179.32 and 79,804.17 is: 110,125.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,338.69 : 199,179.32 = 79,804.17 : x
  2. Step 2: Convert to fraction form
    144,338.69/199,179.32 = 79,804.17/x
  3. Step 3: Cross multiply
    144,338.69x = 199,179.32 × 79,804.17
  4. Step 4: Simplify right side
    144,338.69x = 15,895,339,914.74
  5. Step 5: Solve for x
    x = 15,895,339,914.74/144,338.69
  6. Step 6: Final answer
    x = 110,125.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.