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Finding the Fourth Proportional to 188,568.68, 260,239.56 and 108,022.16

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Solution

The fourth proportional to 188,568.68, 260,239.56 and 108,022.16 is: 149,079.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,568.68 : 260,239.56 = 108,022.16 : x
  2. Step 2: Convert to fraction form
    188,568.68/260,239.56 = 108,022.16/x
  3. Step 3: Cross multiply
    188,568.68x = 260,239.56 × 108,022.16
  4. Step 4: Simplify right side
    188,568.68x = 28,111,638,474.13
  5. Step 5: Solve for x
    x = 28,111,638,474.13/188,568.68
  6. Step 6: Final answer
    x = 149,079.04

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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.