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Finding the Fourth Proportional to 188,502.40, 260,133.24 and 103,619.44

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Solution

The fourth proportional to 188,502.40, 260,133.24 and 103,619.44 is: 142,994.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,502.40 : 260,133.24 = 103,619.44 : x
  2. Step 2: Convert to fraction form
    188,502.40/260,133.24 = 103,619.44/x
  3. Step 3: Cross multiply
    188,502.40x = 260,133.24 × 103,619.44
  4. Step 4: Simplify right side
    188,502.40x = 26,954,860,654.19
  5. Step 5: Solve for x
    x = 26,954,860,654.19/188,502.40
  6. Step 6: Final answer
    x = 142,994.79

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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.