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Finding the Fourth Proportional to 188,764.32, 260,494.20 and 103,881.32

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Solution

The fourth proportional to 188,764.32, 260,494.20 and 103,881.32 is: 143,355.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,764.32 : 260,494.20 = 103,881.32 : x
  2. Step 2: Convert to fraction form
    188,764.32/260,494.20 = 103,881.32/x
  3. Step 3: Cross multiply
    188,764.32x = 260,494.20 × 103,881.32
  4. Step 4: Simplify right side
    188,764.32x = 27,060,481,348.34
  5. Step 5: Solve for x
    x = 27,060,481,348.34/188,764.32
  6. Step 6: Final answer
    x = 143,355.91

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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.