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Finding the Fourth Proportional to 186,543.92, 279,855.88 and 60,191.36

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Solution

The fourth proportional to 186,543.92, 279,855.88 and 60,191.36 is: 90,299.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,543.92 : 279,855.88 = 60,191.36 : x
  2. Step 2: Convert to fraction form
    186,543.92/279,855.88 = 60,191.36/x
  3. Step 3: Cross multiply
    186,543.92x = 279,855.88 × 60,191.36
  4. Step 4: Simplify right side
    186,543.92x = 16,844,906,021.20
  5. Step 5: Solve for x
    x = 16,844,906,021.20/186,543.92
  6. Step 6: Final answer
    x = 90,299.95

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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.