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Finding the Fourth Proportional to 188,957.93, 260,756.60 and 102,914.96

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Solution

The fourth proportional to 188,957.93, 260,756.60 and 102,914.96 is: 142,019.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,957.93 : 260,756.60 = 102,914.96 : x
  2. Step 2: Convert to fraction form
    188,957.93/260,756.60 = 102,914.96/x
  3. Step 3: Cross multiply
    188,957.93x = 260,756.60 × 102,914.96
  4. Step 4: Simplify right side
    188,957.93x = 26,835,753,240.38
  5. Step 5: Solve for x
    x = 26,835,753,240.38/188,957.93
  6. Step 6: Final answer
    x = 142,019.73

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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.