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Finding the Fourth Proportional to 188,905.62, 260,688.48 and 104,022

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Solution

The fourth proportional to 188,905.62, 260,688.48 and 104,022 is: 143,549.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,905.62 : 260,688.48 = 104,022 : x
  2. Step 2: Convert to fraction form
    188,905.62/260,688.48 = 104,022/x
  3. Step 3: Cross multiply
    188,905.62x = 260,688.48 × 104,022
  4. Step 4: Simplify right side
    188,905.62x = 27,117,337,066.56
  5. Step 5: Solve for x
    x = 27,117,337,066.56/188,905.62
  6. Step 6: Final answer
    x = 143,549.66

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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.