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Finding the Fourth Proportional to 188,586.36, 260,251.02 and 103,704

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Solution

The fourth proportional to 188,586.36, 260,251.02 and 103,704 is: 143,112.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,586.36 : 260,251.02 = 103,704 : x
  2. Step 2: Convert to fraction form
    188,586.36/260,251.02 = 103,704/x
  3. Step 3: Cross multiply
    188,586.36x = 260,251.02 × 103,704
  4. Step 4: Simplify right side
    188,586.36x = 26,989,071,778.08
  5. Step 5: Solve for x
    x = 26,989,071,778.08/188,586.36
  6. Step 6: Final answer
    x = 143,112.53

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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.