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Finding the Fourth Proportional to 186,892.99, 280,166.78 and 74,545.88

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Solution

The fourth proportional to 186,892.99, 280,166.78 and 74,545.88 is: 111,749.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,892.99 : 280,166.78 = 74,545.88 : x
  2. Step 2: Convert to fraction form
    186,892.99/280,166.78 = 74,545.88/x
  3. Step 3: Cross multiply
    186,892.99x = 280,166.78 × 74,545.88
  4. Step 4: Simplify right side
    186,892.99x = 20,885,277,947.40
  5. Step 5: Solve for x
    x = 20,885,277,947.40/186,892.99
  6. Step 6: Final answer
    x = 111,749.93

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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.