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Finding the Fourth Proportional to 188,549.21, 260,202.50 and 103,666.27

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Solution

The fourth proportional to 188,549.21, 260,202.50 and 103,666.27 is: 143,061.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,549.21 : 260,202.50 = 103,666.27 : x
  2. Step 2: Convert to fraction form
    188,549.21/260,202.50 = 103,666.27/x
  3. Step 3: Cross multiply
    188,549.21x = 260,202.50 × 103,666.27
  4. Step 4: Simplify right side
    188,549.21x = 26,974,222,619.68
  5. Step 5: Solve for x
    x = 26,974,222,619.68/188,549.21
  6. Step 6: Final answer
    x = 143,061.98

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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.