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Finding the Fourth Proportional to 188,549.73, 260,209.14 and 103,684.41

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Solution

The fourth proportional to 188,549.73, 260,209.14 and 103,684.41 is: 143,090.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,549.73 : 260,209.14 = 103,684.41 : x
  2. Step 2: Convert to fraction form
    188,549.73/260,209.14 = 103,684.41/x
  3. Step 3: Cross multiply
    188,549.73x = 260,209.14 × 103,684.41
  4. Step 4: Simplify right side
    188,549.73x = 26,979,631,157.51
  5. Step 5: Solve for x
    x = 26,979,631,157.51/188,549.73
  6. Step 6: Final answer
    x = 143,090.27

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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.