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Finding the Fourth Proportional to 188,469.64, 260,088.24 and 103,586.68

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Solution

The fourth proportional to 188,469.64, 260,088.24 and 103,586.68 is: 142,949.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,469.64 : 260,088.24 = 103,586.68 : x
  2. Step 2: Convert to fraction form
    188,469.64/260,088.24 = 103,586.68/x
  3. Step 3: Cross multiply
    188,469.64x = 260,088.24 × 103,586.68
  4. Step 4: Simplify right side
    188,469.64x = 26,941,677,288.64
  5. Step 5: Solve for x
    x = 26,941,677,288.64/188,469.64
  6. Step 6: Final answer
    x = 142,949.69

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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.