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Finding the Fourth Proportional to 186,064.92, 279,189.66 and 73,742.70

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Solution

The fourth proportional to 186,064.92, 279,189.66 and 73,742.70 is: 110,650.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,064.92 : 279,189.66 = 73,742.70 : x
  2. Step 2: Convert to fraction form
    186,064.92/279,189.66 = 73,742.70/x
  3. Step 3: Cross multiply
    186,064.92x = 279,189.66 × 73,742.70
  4. Step 4: Simplify right side
    186,064.92x = 20,588,199,340.48
  5. Step 5: Solve for x
    x = 20,588,199,340.48/186,064.92
  6. Step 6: Final answer
    x = 110,650.62

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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.