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Finding the Fourth Proportional to 188,546.48, 260,187.49 and 103,662.89

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Solution

The fourth proportional to 188,546.48, 260,187.49 and 103,662.89 is: 143,051.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,546.48 : 260,187.49 = 103,662.89 : x
  2. Step 2: Convert to fraction form
    188,546.48/260,187.49 = 103,662.89/x
  3. Step 3: Cross multiply
    188,546.48x = 260,187.49 × 103,662.89
  4. Step 4: Simplify right side
    188,546.48x = 26,971,787,155.25
  5. Step 5: Solve for x
    x = 26,971,787,155.25/188,546.48
  6. Step 6: Final answer
    x = 143,051.13

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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.