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Finding the Fourth Proportional to 188,752.86, 260,490.18 and 108,185.57

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Solution

The fourth proportional to 188,752.86, 260,490.18 and 108,185.57 is: 149,302.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,752.86 : 260,490.18 = 108,185.57 : x
  2. Step 2: Convert to fraction form
    188,752.86/260,490.18 = 108,185.57/x
  3. Step 3: Cross multiply
    188,752.86x = 260,490.18 × 108,185.57
  4. Step 4: Simplify right side
    188,752.86x = 28,181,278,602.70
  5. Step 5: Solve for x
    x = 28,181,278,602.70/188,752.86
  6. Step 6: Final answer
    x = 149,302.53

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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.