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Finding the Fourth Proportional to 188,716.48, 258,740.96 and 185,346.88

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Solution

The fourth proportional to 188,716.48, 258,740.96 and 185,346.88 is: 254,121.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,716.48 : 258,740.96 = 185,346.88 : x
  2. Step 2: Convert to fraction form
    188,716.48/258,740.96 = 185,346.88/x
  3. Step 3: Cross multiply
    188,716.48x = 258,740.96 × 185,346.88
  4. Step 4: Simplify right side
    188,716.48x = 47,956,829,664.20
  5. Step 5: Solve for x
    x = 47,956,829,664.20/188,716.48
  6. Step 6: Final answer
    x = 254,121.05

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.