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Finding the Fourth Proportional to 188,793.64, 260,530.32 and 102,748.96

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Solution

The fourth proportional to 188,793.64, 260,530.32 and 102,748.96 is: 141,790.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,793.64 : 260,530.32 = 102,748.96 : x
  2. Step 2: Convert to fraction form
    188,793.64/260,530.32 = 102,748.96/x
  3. Step 3: Cross multiply
    188,793.64x = 260,530.32 × 102,748.96
  4. Step 4: Simplify right side
    188,793.64x = 26,769,219,428.47
  5. Step 5: Solve for x
    x = 26,769,219,428.47/188,793.64
  6. Step 6: Final answer
    x = 141,790.90

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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.