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Finding the Fourth Proportional to 186,663.30, 280,104.30 and 68,346.60

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Solution

The fourth proportional to 186,663.30, 280,104.30 and 68,346.60 is: 102,559.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,663.30 : 280,104.30 = 68,346.60 : x
  2. Step 2: Convert to fraction form
    186,663.30/280,104.30 = 68,346.60/x
  3. Step 3: Cross multiply
    186,663.30x = 280,104.30 × 68,346.60
  4. Step 4: Simplify right side
    186,663.30x = 19,144,176,550.38
  5. Step 5: Solve for x
    x = 19,144,176,550.38/186,663.30
  6. Step 6: Final answer
    x = 102,559.94

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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.