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Finding the Fourth Proportional to 186,391.42, 280,008.00 and 110,539.71

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Solution

The fourth proportional to 186,391.42, 280,008.00 and 110,539.71 is: 166,059.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,391.42 : 280,008.00 = 110,539.71 : x
  2. Step 2: Convert to fraction form
    186,391.42/280,008.00 = 110,539.71/x
  3. Step 3: Cross multiply
    186,391.42x = 280,008.00 × 110,539.71
  4. Step 4: Simplify right side
    186,391.42x = 30,952,003,208.20
  5. Step 5: Solve for x
    x = 30,952,003,208.20/186,391.42
  6. Step 6: Final answer
    x = 166,059.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.