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Finding the Fourth Proportional to 188,956.76, 260,760.59 and 102,916.08

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Solution

The fourth proportional to 188,956.76, 260,760.59 and 102,916.08 is: 142,024.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,956.76 : 260,760.59 = 102,916.08 : x
  2. Step 2: Convert to fraction form
    188,956.76/260,760.59 = 102,916.08/x
  3. Step 3: Cross multiply
    188,956.76x = 260,760.59 × 102,916.08
  4. Step 4: Simplify right side
    188,956.76x = 26,836,458,191.55
  5. Step 5: Solve for x
    x = 26,836,458,191.55/188,956.76
  6. Step 6: Final answer
    x = 142,024.33

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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.