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Finding the Fourth Proportional to 188,894.92, 260,592.78 and 108,303.96

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Solution

The fourth proportional to 188,894.92, 260,592.78 and 108,303.96 is: 149,412.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,894.92 : 260,592.78 = 108,303.96 : x
  2. Step 2: Convert to fraction form
    188,894.92/260,592.78 = 108,303.96/x
  3. Step 3: Cross multiply
    188,894.92x = 260,592.78 × 108,303.96
  4. Step 4: Simplify right side
    188,894.92x = 28,223,230,021.41
  5. Step 5: Solve for x
    x = 28,223,230,021.41/188,894.92
  6. Step 6: Final answer
    x = 149,412.33

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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.