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Finding the Fourth Proportional to 188,578.18, 260,222.43 and 111,041.56

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Solution

The fourth proportional to 188,578.18, 260,222.43 and 111,041.56 is: 153,228.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,578.18 : 260,222.43 = 111,041.56 : x
  2. Step 2: Convert to fraction form
    188,578.18/260,222.43 = 111,041.56/x
  3. Step 3: Cross multiply
    188,578.18x = 260,222.43 × 111,041.56
  4. Step 4: Simplify right side
    188,578.18x = 28,895,504,574.19
  5. Step 5: Solve for x
    x = 28,895,504,574.19/188,578.18
  6. Step 6: Final answer
    x = 153,228.25

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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.